Titanium - Science topic

Because of the HF content of Kroll's reagent which is very dangerous to handle, I would like to know if there is/are other etchants for titanium aluminium alloys. Thanks.

I tried to obtain TiO₂ nanoparticles by combining a solution of titanium isopropoxide (TTIP 1 mM, dissolved in isopropyl alcohol) and epigallocatechin gallate (EGCG 1 mM, in water), but, even though UV-Vis spectrum indicated the NPs were formed, I couldn't obtain a precipitate. Probably the nanoparticles are still soluble in isopropanol? Does anyone have any idea what is going on in the reaction between TTIP and EGCG and how can I purify the nanoparticles?

I just want to know if like titanium isopropoxide, titanium (IV) sulfate also needs to be handled in a glovebox? Thanks!

Hello, good morning everyone. I'm looking for a cell migration test on titanium discs. For this, I need a fluorescent marker that is not cytotoxic and that allows the cells to be visualized using an inverted fluorescence microscope.

Can you help me with this?

Thank you very much!

Greetings everyone,

I work in a facility where we need to cut thin sheets (3–4 mm = 0.12–0.16 in) of Ti6Al4V Eli using wire EDM. The parts we’re cutting are neither simple nor complicated (imagine cutting a spoon shape—without the concavity—out of a thin metal sheet); those parts are then heated and bent to the final shape (which, again, is usually not very complicated, practically similar to the bends found in an ordinary spoon). The issue is that we have an excessive amount of waste titanium sheets after cutting, and we were wondering how we could reduce waste while also making the entire process more efficient in terms of raw stock. One of my coworkers suggested that we use thicker (12mm = 0.5in) plates and then orient the parts sideways so the wire EDM machine can cut the bends while still inside the machine in-situ. He argues that by optimizing the layout of the sideways-oriented parts on the plates, we can fit more parts into each plate and thus reduce the waste material. I’ve attached some illustrative drawings to illustrate what I mean more clearly.

I personally think that, although we might be able to get some waste material back, the whole process may not be worth the effort. First of all, the mechanical integrity of the part must not be compromised in any way, and I don’t think that the mechanical properties of the parts that were cut normally and the mechanical properties of the parts that were cut sideways are going to be the same. In fact, I believe that cutting the parts sideways might make the final product worse and less durable since metal plates are not isotropic, and we, at the very least, might need a new heat treating step to recover or maintain the mechanical integrity of the final product. This, of course, defeats the whole purpose of this initiation.

I am fully aware that I’m not professional nor do I have experience in these topics; I'm a newly graduated BME engineer, and I might have gotten all of this wrong. In either case, I kindly ask someone with sufficient and relevant experience to help me, or at least to guide me on how to search for such topics. I need to professionally and/or scientifically prove that this idea may or may not work. I’ve been searching the internet for a couple of days now, and the amount of information is intimidating. I’m going from one rabbit hole to another and keep getting lost in the details, which is why I believe I need someone more experienced to show me where to look or how to start.

Thanks to everyone in advance. Your help is much appreciated.

what structural property/properties of Titanium makes it one of the suitable suitable for adsorption?

What should be the acceleration voltage used for EDS analysis of plasma electrolytic oxidation coating (6 μ) on titanium?

Hi everyone,

I would like to use water soluble Titanium salts for my research work.

Except Titanium nitrate, is there any other water soluble titanium salts.

Please lemme know is anything.

Thanks and regards,

Hello everyone. please help me

I want to know why titanium nitride(TiN) has better electrical conductivity than titanium oxide(TiO2).

Thesedays, i did some experiments about PEMFC bipolar plate.

I installed TiN coating to titanium substrate. And, interfacial contact resistance was improved.

But. I dont know why transition metal nitride (CrN, TiN etc) has good electrical conductivity.

steel shows fatigue limit due to dislocations being trapped by cottrel atmosphrere of acrbon, and a minimum level of stress needed to keep the dislocations continously moving. WHich is the element responsible for same behavior in Titanium? Does pure Ti (and Pure Fe) devoid of solute elements also show fatigue limit? if yes, why?

Most papers were using Titanium tetraisopropoxide (TTIP) as a precursor for preparation of Titanium photo catalyst. Is there any difference using Titanium butoxide in place of (TTIP)?

I am using PVD machine for gold plating on ceramic products. there are 20 sources of titanium, reactive gas N2 and Ar,

I am having trouble when vacuuming 2.0x10-2Pa , adding Ar and N2 gas and bombarding the titanium source, the vacuum is lost and cannot be coated (7.0x10-1 ~ 9.0x10-1) the more sources titanium open, the more vacuum is lost

There is a satellite peak in Cu2+ but it is absent in titanium. What factors are responsible for the appearance of satellite peaks? Please elaborate.

Normally, I make TiO2 sol with titanium isopropoxide, ethanol, distilled water and hydrochloric acid. But I don't know which chemicals how need use to for hydrophobic sol.

NOTE: I working on glass coating that's why solution must transparent.

The sintering of 18Ni300 will encounter the enrichment of titanium and aluminum elements on the grain boundaries. Is there any possible reason? How to avoid its occurrence to achieve densification?

Hello dear Researchers,

I've been working on to produce Mo-Ti alloys via powder metallurgy method. Yet, I've come across a problem: I can not properly distribute Titanium in Molybdenum host. I'm using mechanical alloying technique with planetary type of mill. So far, I've tryed 1 to 8 hours milling time. What can you recommend to distribution of Ti .. modification of milling would be enough? (time, ball to powder ratio, rpm etc.) or should I look for different situations? Also I need to increase the Strength and I'm thinking forging(hot or cold) process for that.. Any idea on incresing the strength would be appreciated..

Thank you

According to the great difference between titanium propreties and Aluminum ones, especially the melting temperature. We have to make an other alloy between Aluminum and Titanum to weld them using RFW technique, for example, we have thaught about the copper. Do you agree ?

We are trying to coat HAp (hydroxyapatite) on the titanium plate by electrophoretic method, but the formation of the coating cannot be observed. Although we increased the voltage and time settings, there is no coating on the plate. I would be very grateful if you could help with this situation?

Hello,

During the analysis of twin transfer or slip transfer of alloys, the criteria of displacement gradient accommodation (DGA) and stress-driven accommodation (SDA) were used.

I tried to figure out the correlation among them with the grain orientations, boundary conditions, slip/twin systems, and external loading. But I still did not get the fundamental cores.

I hope it can be written like m prime or Schmid factor with a clear explanation.

Hope someone good in this field can provide constructive guidance!

Best wishes,

Biaobiao

Titanium Carbide

Why is titanium precursor dripped drop by drop on TiO2 synthesized by the sol gel method? and why not use HMTA?

I am currently working on differently coated titanium disks in order to investigate any antimicrobial/bacteriostatic effect. Taking a cue from the literature, I'm incubating the disks with a known concentration of bacteria for 8 and 24 hours (in order to allow biofilm formation), then I gently wash and sonicate them. This procedure allows detaching adherent bacteria that formed a biofilm on the surfaces, and the medium in which the disks have been sonicated is used to count CFU on agar plates.

Overall this procedure seems to work, but now I have an issue: the coating I'm testing now detaches from the titanium, even with a weak vortex. The coating is not soluble and thus does not spread in agar, so I can't apply a modified Muller-Hinton test and I don't have the possibility to read absorbance after colorimetric assay, nor special microscopes.

What is the type of acid, temperature, voltage or amperage of the electropolishing jet and how are the settings made?

We put titanium dissopropoxide bis (acetylacetonate) in a freezing section for 1 day. Now the chemical is crystallized and segregated with the solvent. It won't go to a mixed state by itself. What do we do to recover the chemical?

I want to synthesise Titanium carbide Mxene for modification of Electrode and Titanium carbide Mxene is prepared by etching of Ti3AlC2. So I want to buy the powder of Ti3AlC2.

But there are too many types of Ti3AlC2 powder available so I am confused about which product is better for making Mxene.

Can you give suggestions on that?

I discovered two distinct phenomena when cracks begin to form at α and β phases in titanium alloys. How does this difference mechanism come about?

is there any feasible method to convert titanium metal to soluble precursor ?

Suggestions for small scale Plasma treatment instruments

I want to know the lifetime of a titanium sol (TIO2).

I have done Vicker's hardness analysis with titanium and thin-film coated titanium and I'm trying to show the hardness of the coated titanium. I plotted the graph of hardness versus load from 0.1 to 30Kgf, however, for the titanium - the graph was declined as the load increased, and for the coated titanium - the graph went up as the load increased.

I'm not understanding how to conclude from the graph?

Thank you in advance.

Hello, I am looking for some platinum ball of 1/4 inch diameter, or platinum coated titanium ball of 1/4 inch. If anyone has idea about any sources, vendors or manufacturers info, or even if anyone can make it in their research lab and my lab can buy it, please let me know. we are trying to develop a system where I am gonna use that electrode. reference and name will be included if it turns out a technical paper.

I Need Wire EDM Facility availability in India to perform Machining Titanium Based Alloys By Varying Machining Parameters as part of the project.

I want to work on a hydroxyapatite coating on grade 5 titanium, but I do not know which is better between the three sol-gel, electrophoretic methods with chemical vapor deposition and plasma spray???!!!

Glad to share your suggestion on this topic.

I'm using silicone resin for paint formulation (zirconia as a filler material) and It doesn't cure at atmosphere and elevated temperature also. And I tried titanium 4 isopropoxide, it dried but film becomes flakes while exposed to 250 degree Celsius in muffle furnace. Resin was bought from dow chemicals, the technical data sheet attached below for your reference

Hi

I working on Titanium sol gel. I dried glass at 100 Celcius for an hour and calsination at 500 Celcius for an hour. After this process, the glass is waiting in furnace all day for cooling. When I was looking my sample, I see cracks on surface. Glass is 24x24x0,14 mm.

The Alpha Titanium is known to be non heat treatable but it is strengthened by Ti3Al precipitate for increased aluminum content. Doesn't this constitute a contradiction?

Good day, dear colleagues.

I have an interesing question for PVD technology specialists.

We use an equipment (Picture 1) for Arc-PVD technology with titanium cathode (picture 3) for glass surface coating (Picture 4).

But we faced with problem of nonequal coating thickness on the surface. In the central part of surface (under cathode placed) the thicknes is OK. On the corner parts the coating thickness is low (Picture 2).

What is the reason of this not uniform thickness?

Is it possible to create aproximately similar coating thickness on the all surface zones? Do You know any technical methods to rich this goal?

I'm working on superhydropobic coating with titanium sol-gel. I use titanium isopropoxide, ethanol, distilled water and HCI. After dip coating, I put glass to in desiccator and dried 50 C for 1 hour. After drying, there were flake-like structures on the surface of the glass and not transparent. How can I fix this problem?

The heat transfer coefficient is a important parameter during the simulation of dissimilar metal welding. But it is technically difficult to determine, especially in laser welding, due to the extremely fast heating and cooling rates of molten pool. During the laser welding brazing of aluminum and titanium, the molten aluminum was spread on the unmelted titanium and heat transfer happened between them. From the existing literature, I have gotten the heat transfer cofficient during casting was about 1000~3000W/m²/K. But there is none literature about the heat transfer cofficient between molten aluminum and unmelted titanium during laser welding-brazing. If you have some favorable suggestions, please share them with me. Thank you very much!

Hi

can anybody please tell me what is  the value (-0.157) next titanium concentration in my soil sample means?

I need to deposit the anatase TiO2 layer on ITO and FTO glasses, considering the experimental parameters, I found the optimum heat treatment temperature for 450 C. However, the substrate can not bear higher than 200 C. Is it possible to decrease crystallization temperature by playing with experimental parameters? which parameter is more effective in decreasing crystallization temperature?

PS. I used Titanium butoxide as a precursor and propanol as a solvent.

I have synthesized Titanium carbide (Ti3C2) from Ti3SiC2 tiranium silicon carbide using wet chemical etching method.but for xrd analysis I am using xpert software and Jade.but in these two software I can not get the elemental composition of my sample.Xpert sofware is showing " No candidates found" I don't understand what is the problem.If its related to PDF cards then please send me the pdf cards of Titanium silicon carbide and titanium carbide?

here is my email id ; noorabbasi94@yahoo.com

For c-TiO2 layer onto FTO, I need to make 30 mM titanium diisopropoxide bis(acetylacetonate) (TDBA) solution for spray-pyrolysis.

As far as I know, TDBA is usually sold as a solution in IPA (75wt%).

How could I make 30 mM titanium diisopropoxide bis(acetylacetonate) (TDBA) solution using TDBA in IPA (75wt%) solution?

The through hole is done using a 8mm electrode and surface roughness has to be calculated on the side walls of the titanium grade 5 workpiece of size (25*25*5) mm.

I want to validate these results which are showing in pictures. I am using SRIM software. I do not know about the hydrogen ratio in this combination. I read many research articles but do not find right solution. I mention below the paper link..

I am doing CFM with K3Fe(CN)6/PBS on the cathode side and whey with K. pneumoniae on the anode side. The problem is that the volume of the cathode is decreasing and the volume of the anode is increasing. It is a closed double chamber with graphene electrodes, titanium wire and Nafion membrane. Voltage will be generated, but the amps show 0 on the multimeter.

And I don't know what's going on. I am doing the measurements in open circuit (directly connected to the multimeter without the electrodes being linked by an external load).

Could someone tell me what's going on or how do I fix this, please?

I need to synthesis a composite of LDH included titanium cation in (+2 and +3) as an oxidation state.

However, what are the materials that I need to synthesis?

Steps in preparation of Titanium reagent required for Catalase analysis?

I am currently working on some magnetic multilayer stacks. I am thinking if it could be possible to grow magnetic layers on top of a TiN seed layer. Usually I use TaPt as my seed layer.

I can do room temperature sputtering deposition and directly deposit TiN (non-reactive) on to thermally oxidized silicon wafer. Could someone give some insight into this?

Thanks!

I was looking into several articles where Propagating surface plasmon (PSP) and localized surface plasmon (LSP) are excited in Titanium metal gratings (square) at different wavelengths. For PSP, the well-known dispersion wavevector needs to be matched with the diffraction wavevector. However, for exciting LSP, I couldn't find any specific logical formula, rather than the simulated electric field profiles showing LSP coupling. I was trying to figure out whether it is possible to excite only LSP in metal gratings (square), but no PSP excitation. If so, what should be the mathematical condition for LSP?

Hello.

I'm currently trying to fabricate a Titanium metal wire via e-beam lithography.

However, when I use bilayer ER (PMMA / MMA), the resistivity of deposited metal was significantly higher than use of monolayer ER (PMMA)

Someone had solved this problem?

Hi! I am doing a search to find catalysts for the reaction of adipic acid and ethylene glycol / diethylene glycol for polyester production, poly (ethylene adipate).

Until now, in my researches, I found titanium butoxide and p-toluenesulfonic acid as the most used. I also found tin catalysts, but I would like to find others that are not made of tin.

Is there any other catalyst that allows a reaction at temperatures below 200°C that is commercially available?

Thanks in advance!

I have tried doing ebsd but it is not giving a lot of un indexed points. So I dont know if the unindexed points are finer alpha titanium or beta titanium. During electro polishing the softer beta phase is getting etched off giving unindexed points on the IPF map .

I don't see any inherent benefit of e-beam over SLM? Since you need a high vacuum for the e-beam and also need a very high-temp heat bed to consolidate the powder to create a conductive path for the e-beam; but it seems it's so widely used for titanium alloys even though titanium can be printed via SLM very well.

Is it just because the process parameter development has been around for much longer?

Hi,

I am a new user to DAMASK SOFTWARE. i have installed DAMASK and ABAQUS software in Linux platform in order to perform a crystal plasticity (CP) analysis (quasi static damage mechanism) using these two software. I have developed a 3D model Titanium microstructure using Neper software. Now i have to export this file into ABAQUS software and need to introduce all the crystal plasticity parameters using DAMASK software but i am not familiar with DAMASK SOFTWARE. Can anyone guide or could share any reference material/ videos so that it can be a good guidance to perform the CP analysis?

Thank you in advance.

karthi

It is generally understood that the McMurry reaction is an organic reaction in which two ketone or aldehyde groups are coupled to form an alkene using a titanium chloride. Can we use some other catalyst instead of titanium chloride herein? I have planned to get heterocyclic ketones as the reaction substrate.

I want to doped Bi on TiO2 surface by anodization method. I've read a journal that said need 1 M Bi(NO3)3 in electolyte and I've tried to dissolved Bi(NO3)3 in the electrolyte (0,3% NH4F, 2% H2O in ethylene glycol) or in water but it can't dissolved perfectly. I doubted Bi can doped on TiO2 if Bi(NO3)3 can't dissolved in the electolyte. is there a way to dissolved Bi(NO3)3 without change the electrolyte?

We are developing FA-Ti coating on Ti-alloy using plasma spray. The cell culture and in-vitro tests showed that apatite and cell formed around the edges.

The wettability test showed hydrophobic properties of the coating. The XRD examinations revealed that Ti6O and Ti3O phases are existed.

I am new to Damask simulation software. I am trying to simulate the tensile stress-strain curve of Cp Titanium. Can anyone explain what parameters should I change in the config file to match them? I am trying to change the To and Tsat values of basal and prismatic slip syaytems. Do I have to keep the ratios of the T0 and Tsat values the same while changing the values or can I change randomly till I get the fit?

I am carrying out electrochemical anodization of Ti foils followed by certain chemical reactions. How can I effectively measure the change in conductance/ resistance of the material before and after anodization?

Hello everyone,

Normally, metals have a higher coefficient of thermal expansion (CTE) than ceramics. I would like to know how the higher CTE of hydroxyapatite than titanium would be explained?

CTE (hydroxyapatite)≈ 14.6×10-6 °C-1

CTE (Ti64)≈ 8.6×10-6 °C-1

Thank you.

Dear colleagues, I have been recently reading about the twinning system in titanium beta alloys and I learned that either {332}<113> or {112}<111> systems have 12 variants. Does anyone know how to determine the variant of a given twin boundary by EBSD? Is there any available stereographic projection available?

Dear All,

I am trying to make titanium nanoparticles via a chemical route. As smaller particles are very difficult to protect from oxidation, how can I achieve bigger particle size via modifying the reaction conditions? Any suggestions are welcome.

Thank you everyone for your time and suggestions.

Why is when tio2 is synthesized as photocatalysis by sol-gel method "isopropanol" added to titanium tetraisopropoxide (TTIP) as a solvent Why do they use this specifically "isopropanol" ?

Hello, I am doing my final degree project, I am preparing an implant with an SLM titanium printer, I know that I must blast it with alumina to remove the titanium particles burned by the laser, but I do not know if I should perform the acid etching and what procedure of subsequent sterilization I must carry out, I anticipate my thanks.

Best regards,

I am looking to make some metalographic samples from pure titanium. I found out that the mix of water, HF and HNO3 would be best. However I wonder what proportions would be best or if there is another solution I can use

Hello,

In my experiment we are deforming pure titanium at high temperature (975 K) on Gleeble plastic deformation simulator. Samples are 10 mm in diameter and 12 mm in height. This is titanium grade 2. Unfortunately, just after temperature is reached the thermocouples are falling off. There is some sort reaction that cases places in which thermocouples are atached to melt. Has anybody had similar problem? Has anybody any idea what may cause such reaction?

What could be the possible reason behind the depletion of Ti represented in the spider diagram of ultramafic rocks?

The sample is titanium nanopowders with an average diameter of 6nm.

In the case of Ti-alloys, it is confirmed that α stabilizer increases the c/a ratio. What is the mechanism of correlation of the c/a ratio with the unit cell? It is true if increases c/a ratio in HCP structure will linearly decrease unit-cell? or vice versa? What is the mechanism to connect these phenomena?

I need an explanation of this sentence:

Firstly, SnCl4.5H2O with fixed at 0, 1, 3, and 5 mol% of TiO2 and Titanium (IV) isoproxide (TTIP) with fixed at 10 ml were mixed into 150 ml of ethanol (C2H5OH) and.

what is the meaning of (fixed at), and what is the meaning of (0, 1, 3, and 5 mol%)?

how do I find the volume of SnCl4.5H2O, TiO2, and Titanium (IV) isoproxide (TTIP)?

I didn't use Titanium (IV) isopropoxide (CAS: 546-68-9) for a long time, and now that I came to it I see that it is divided into an aggregation part sedimented and a fluid part over it. Why is it so and how to mix them together again?

I am trying to design CVD Reactor using COMSOL Multiphysics, for this i have to get the some of the unknowns in the Arhenius Rate expression K= A (T/Tre)^n e^(-E/RT). the unknowns are temperature exponent(n) and frequency factor(A) at different temperatures for the thermal decomposition of TTIP(Titanium tetra isopropoxide).is there any software available for generating the mechanisms and the above. I appreciate your suggestions and comments

Thanks and regards

Riyas V