1a) Sintered particles in MPT chamber. 1b) Ruptured bridge. 2a) Single particle under compression. 2b) Particle half after breakage. 

Contexts in source publication

Context 1

... likewise glassy sinter bridge was then ruptured upon retracting one particle and the required force was recorded. Based on this force, F rupture , and the diameter, x, of the bridge obtained from lateral imaging (Figure 1), the bridge tensile strength, σ t , was derived [3]: ...

Context 2

... particles were subjected to compression forces applied by the punch and load cell of a standard material tester (Zwick Roell, Germany). According to Hiramatsu and Oka [4], the force, F fracture , necessary to break a sphere along its centre delivers the particle material strength, σ p , together with the particle diameter, a (see Figure 1): ...

Context 3

... becomes apparent upon retraction of one particle and inducing a brittle fracture of the bridge for which large rupture forces are required. The bridge before and after the tensile strength tests is shown in Figure 1 (1a) and (1b), whereby the rough breakage plane suggests brittle fracture. In all performed tests following the same protocol, the breakage plane is located at the thinnest part of the bridge right between the particles, which is the weakest point in the two particle system. ...

Context 4

... evaluate this quantitative result and investigate if sinter bridges have similar properties to the particle material, more than 8 crushing strength tests on individual glassy particles were conducted on particles that were also equilibrated at 2°C below their T g . Again, brittle fracture occurred, this time along the particle centre induced by point-load compression (Figure 1 (2a) and (2b)). The calculated tensile strength upon breakage is plotted in Figure 2 for comparison with the results from the sinter bridge rupture tests. ...