Dense machinable α-SiAlON/BN composites were fabricated by hot-pressing using turbostratic boron nitride (tBN) obtained from nitridation of melamine diborate. The tBN was added to the starting powders, or introduced as a coating that formed in situ on α-Si3N4 carrier powders during nitridation, and was subsequently converted to hexagonal boron nitride (hBN) during hot pressing by solution repre...

This work, models the compaction of a dispersed body under conditions hot isostatic pressing (HIP) cycle using example manufacture compacts from VZh159ID powder and Inconel alloy 718. For research, fraction -70 + 25 μm, bulk density 3.77 g/cm3 (4.83 after tapping), fluidity 2.3 g/s, specific surface area 446 cm2/g, average particle size was used according to Fisher 16 microns, as well 718 -315 ...

Power metallurgy hot isostatic pressing (PM-HIP) is a manufacturing technique capable of producing net shape or near-net components with complicated geometries from materials that are difficult to melt and cast, mechanically deform weld. However, the process soundness outcome extremely sensitive geometric design capsule (also known as die can) used in process. The for each new component involve...

spark plasma sintering (sps) method, as plasma activated sintering, is a method applicable for rapid sintering of metals and ceramics. owing to the advantage of rapid heating, the alumina ceramics obtained by sps have a grain size and density comparable to those of hot pressed ones. the increase of densification rate may be related to some difference in ion transport characteristics. this study...