TY - JOUR
T1 - Effect of Sintering Process on Microstructure and Mechanical Properties of Silicon Nitride
AU - Zhang, Jingyi
AU - Fan, Jinpeng
AU - Liu, Xiaoming
AU - Zhou, Jun
AU - Qie, Dongchun
AU - Zhang, Dahai
N1 - Publisher Copyright:
© 2017, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Porous Si3N4 ceramics were produced through dry press shaping and gas pressure sintering. The effects of sintering temperature and holding time on the microstructure and mechanical properties of porous Si3N4 ceramics were investigated. The porosity, phase composition, flexural strength and elastic modulus of porous Si3N4 ceramics sintered at different sintering schedules were determined, and the microstructures of porous Si3N4 ceramics were analyzed. The results show that the density, α-Si3N4→β-Si3N4 transformation, β-Si3N4 grain growth and flexural strength of material increase when sintering temperature increases. The flexural strength and the porosity of porous Si3N4 prepared at sintering temperature of 1 900 ℃ and holding time of 15 min are 106 MPa and 49%, respectively.
AB - Porous Si3N4 ceramics were produced through dry press shaping and gas pressure sintering. The effects of sintering temperature and holding time on the microstructure and mechanical properties of porous Si3N4 ceramics were investigated. The porosity, phase composition, flexural strength and elastic modulus of porous Si3N4 ceramics sintered at different sintering schedules were determined, and the microstructures of porous Si3N4 ceramics were analyzed. The results show that the density, α-Si3N4→β-Si3N4 transformation, β-Si3N4 grain growth and flexural strength of material increase when sintering temperature increases. The flexural strength and the porosity of porous Si3N4 prepared at sintering temperature of 1 900 ℃ and holding time of 15 min are 106 MPa and 49%, respectively.
KW - Density
KW - Flexural strength
KW - Porous silicon nitride
KW - Sintering temperature
UR - http://www.scopus.com/inward/record.url?scp=85029494284&partnerID=8YFLogxK
U2 - 10.14062/j.issn.0454-5648.2017.06.08
DO - 10.14062/j.issn.0454-5648.2017.06.08
M3 - Article
AN - SCOPUS:85029494284
SN - 0454-5648
VL - 45
SP - 806
EP - 810
JO - Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society
JF - Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society
IS - 6
ER -