Low‐Cost Silicon Nitride from β‐Silicon Nitride Powder and by Low‐Temperature Sintering. Issue 2 (8th August 2013)

• Record Type: Journal Article
• Authors: Kondo, Naoki; Hotta, Mikinori; Ohji, Tatsuki
• Is Part Of: International journal of applied ceramic technology. Volume 12:Issue 2(2015:Mar./Apr.)
• Page Start: 377
• Page End: 382
• Publication Date: 2013-08-08
• Subjects: Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.12157
• Languages: English
• ISSNs: 1546-542X

Abstract

Abstract : Aiming to manufacture low‐cost silicon nitride components, a low‐cost β powder was chosen as a raw powder and low‐temperature sintering at 1550–1600°C under atmospheric pressure nitrogen was carried out. The silicon nitride from β powder with 5 wt% Y2 O3 and 5 wt% MgAl2 O4 additives and sintered at 1600°C for 8 h was successfully densified, and it exhibited moderate strength and toughness of 553 MPa ± 22 and 3.5 MPa m 1/2, respectively. The results indicate that the low‐temperature sintering of the low‐cost β powder has a potential to reduce cost of components.