Texturing of Si3N4 Ceramics via Strong Magnetic Field Alignment

摘要：

　　This paper reports the texture development in Si3N4 by strong magnetic field alignment (SMFA),using slip casting of α-Si3N4 raw powder (SN-E10) and pressureless sintering.The texture of β-Si3N4 in the green and sintered bodies was characterized by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM).The a,b-axis and c-axis aligned β-Si3N4 has been obtained by the static and rotating magnetic field of 12 T,respectively.The β-seed addition and prolonged sintering both enhance the texture,but the former is more efficient.This work suggests an efficient SMFA strategy of producing highly textured β-Si3N4,particularly the unidirectionally c-axis aligned β-Si3N4 by seeding the α-raw powder using the less-agglomerated β-phase particles.

关键词： Silicon nitride Ceramics Texture Seeding Slip casting Strong magnetic field

作者: Xinwen Zhu Tohru S.Suzuki Tetsuo Uchikoshi Yoshio Sakka

作者单位: National Institute for Materials Science,1-2-1,Sengen,Tsukuba,Ibaraki 305-0047,Japan

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 871-874

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）