Rudolph Olson

Rudolph Olson
CFOAM, Triadelphia, WV

PhD

About

18
Publications
1,581
Reads
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730
Citations
Introduction
Currently looking to take carbon foam production utilizing coal to the next level by manufacturing at atmospheric pressure in a continuous process.
Additional affiliations
April 2018 - present
CFOAM LLC
Position
  • GM and CTO
Description
  • General Manager and Chief Technical Officer for CFOAM LLC, a manufacturer of carbon foam for a variety of applications.
February 2016 - April 2018
SELEE Advanced Ceramics
Position
  • Manager
Description
  • Vice President and General Manager for SELEE Advanced Ceramics, a manufacturer of specialty dense ceramics, primarily crucibles for the metals industry.
July 2007 - February 2016
SELEE Corporation
SELEE Corporation
Position
  • VP - Research and Development
Education
September 1992 - March 1998
Northwestern University
Field of study
  • Materials Science and Engineering
September 1989 - December 1991
University of Illinois, Urbana-Champaign
Field of study
  • Ceramic Engineering

Publications

Publications (18)
Article
Full-text available
Filtration of molten aluminium using porous reticulated ceramic foam was developed in 1974 by SELEE Corporation. Since that time, there have been significant technical advances in filter bowl design and construction, preheat systems, development of fine pore size filters, development of compact two-stage filtration systems, filter gasket materials,...
Chapter
IntroductionApplication of Ceramic Foam to Kiln Furniture Longer LifeMore Uniform Atmosphere Surrounding the Fired WareReduction of Frictional Forces during ShrinkageChemical InertnessCost BenefitsManufacture of Kiln Furniture Foam Replication ProcessFoams Manufactured by using Fugitive Pore FormersSummary Longer LifeMore Uniform Atmosphere Surroun...
Chapter
IntroductionTheory of Molten-Metal FiltrationCommercial Applications AluminumIron FoundrySteelSummary AluminumIron FoundrySteel
Article
This work concerns the state of the art for use of impedance spectroscopy for studying the evolving microstructure of cement-based materials during hydration. Features of the spectra are discussed and related to components of the microstructure with the assistance of pixel-based computer modeling techniques. It is proposed that the enormously high...
Article
Microstructural changes due to mercury intrusion porosimetry were documented in a 6-month-old sample of ordinary portland cement paste made with a water/cement ratio of 0.5. Specimens before and after mercury intrusion were viewed at 60% relative humidity using an environmental scanning electron microscope. Specimens were intruded to a pressure jus...
Article
A new technique for measuring the quantity of calcium silicate hydrate (C-S-H) in hydrated, blended cement pastes containing class F fly ash, ground granulated blast furnace slag, or silica fume is based on water adsorption. The rate of C-S-H formation was determined to be logarithmic in all pastes.
Article
Vapor hydration experiments on a U-doped borosilicate waste glass at 200°C produced a novel uranium silicate. Single crystal X-ray structure analysis of this phase indicate the ideal formula KNa3(UO2)2(Si4O10)2(H2O)4, although the compound shows some compositional variability. It is monoclinic, space group C2, Z ˆ= 2; a ˆ= 1:2782…(1), b =ˆ 1:3654(…...
Article
The effects of drying on mortars containing Portland cement blended with fly ash or slag on the shrinkage, extent of surface cracking, pore size distribution as measured by mercury intrusion porosimetry, flexural strength, fracture toughness, and Young’s modulus are reported. Specimens were exposed to conditions of 100% relative humidity (RH), 50%...
Article
Thesis (Ph. D.)--Northwestern University. Includes bibliographical references (leaves 130-137). Photocopy.
Article
Microstructural changes due to mercury intrusion porosimetry were documented in a 6-month-old sample of ordinary portland cement paste made with a water/cement ratio of 0.5. Specimens before and after mercury intrusion were viewed at 60% relative humidity using an environmental scanning electron microscope. Specimens were intruded to a pressure jus...
Article
Portland cement blended with fly ash and attapulgite clay was mixed with high-alkaline solution simulating low-level radioactive waste at a one-to-one weight ratio. The pastes were adiabatically and isothermally cured at various temperatures and analyzed for phase composition, total alkalinity, pore solution chemistry, and transport properties as m...
Article
Dielectric amplification (dielectric constants >80) is observed in cement pastes at early ages. Standard nonlinear least squares fitting routines yield artificially large “capacitances” when constant phase elements are employed. Instead, capacitance vs. frequency analysis provides reliable evidence of dielectric amplification. A physical model syst...
Article
Full-text available
The d.c. conductivity, , and low-frequency relative dielectric constant, k, of Portland cement paste were monitored, using impedance spectroscopy, during cooling from room temperature down to -50 C. Dramatic decreases in the values of and k, as great as two orders of magnitude, occurred at the initial freezing point of the aqueous phase in the macr...
Article
There has been much recent progress on the application of impedance spectroscopy (IS) to the study of microstructure and transport in cement-based materials. The IS spectrum allows for the precise determination of bulk resistance, which is a measure of the pore phase interconnectivity, and calculation of the relative dielectric constant, which is r...
Article
Sintering of bulk YBa2Cu3O(x) (123) samples was conducted from 850 to 1010 C in oxygen partial pressures (P(sub O2)) of 2.5(10)(exp 2) to 10(exp 5) Pa. The final grain sizes of the samples were controlled by selective use of liquid phases and by partial decomposition of the 123 phase by sintering in a P(sub O2) that was lower than the minimum neede...
Article
Ca2CuO3 and Sr2CuO3 were examined for use as insulators with BiSrCaCuO superconductors. Only Ca2CuO successfully synthesized and sintered; the sintering required a slightly higher temperature than that required for the 85 K phase in the BiSrCaCuO system. Ca2CuO3 and the 85 K BiSrCaCuO phase have nearly equal th can be cofired into monol...
Article
Portland cement blended with fly ash and attapulgite clay was mixed with high-alkaline solution simulating low-level radioactive waste stream at a one-to-one weight ratio. Mixtures were adiabatically and isothermally cured at various temperatures and analyzed for phase composition, total alkalinity, pore solution chemistry, and transport properties...
Article
M.S. (Materials Science and Engineering) - Northwestern University, 1993.

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Projects

Project (1)
Project
Research and development on the processing, microstructure, properties and performance of dense refractories for handling molten metal and glass.