Title :
Sintering of Nano-sized Zirconia Powder Processed by Powder Injection Moulding
Author :
Yu, P.C. ; Li, Q.F. ; Fuh, J.Y.H.
Author_Institution :
Singapore Institute of Manufacturing Technology; National University of Singapore
Abstract :
The nano-sized Yttria Stabilized Zirconia (Nano YSZ) powder with an average particles size of 50nm is initially heat treated and then mixed with wax-based binder system. The prepared feedstock is then formed into a shape by powder injection moulding process. The green parts are then thermally debound and sintered. The sintering behavior of the nano-sized particles is presented and compared with those of BASF feedstock. It is found that Nano YSZ can achieve 98% of its theoretical density. Homogenous microstructure is obtained with an average grain size of 500nm. The hardness value of the sintered Nano YSZ is similar to those obtained from BASF feedstock.
Keywords :
Density measurement; Extraterrestrial measurements; Grain size; Injection molding; Isothermal processes; Microstructure; Nanostructured materials; Powders; Temperature; Thermal management;
Conference_Titel :
Emerging Technologies - Nanoelectronics, 2006 IEEE Conference on
Print_ISBN :
0-7803-9357-0
DOI :
10.1109/NANOEL.2006.1609700
