Synthesis of alpha-SiAlON Seed Crystals

Single-phase seed crystals of Caand Y-α-SiAlONs have been synthesized for tailoring microstructure of αSiAlON ceramics. The influence of composition, sintering temperature, and nitrogen pressure on the size and morphology of seeds has been explored. Guidelines for α-SiAlON seed preparation and morphology control are provided. Comments Copyright The American Ceramic Society. Reprinted from Journal of the American Ceramic Society, Volume 84, Issue 7, July 2001, pages 1651-1653. This journal article is available at ScholarlyCommons: http://repository.upenn.edu/mse_papers/41 Synthesis of a-SiAlON Seed Crystals Misha Zenotchkine,* Roman Shuba,* Joo Sun Kim,* and I-Wei Chen* Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6272 Single-phase seed crystals of Caand Y-a-SiAlONs have been synthesized for tailoring microstructure of a-SiAlON ceramics. The influence of composition, sintering temperature, and nitrogen pressure on the size and morphology of seeds has been explored. Guidelines for a-SiAlON seed preparation and morphology control are provided.

[1]  I. Chen,et al.  R-curve behavior of in situ toughened α-SiAlON ceramics , 2001 .

[2]  S. Hampshire,et al.  Liquid Formation in the Y-Si-AI-O-N System , 2000 .

[3]  I. Chen,et al.  Kinetics of phase transformations in SiAlON ceramics: I. effects of cation size, composition and temperature , 1999 .

[4]  I. Chen,et al.  Kinetics of phase transformations in SiAlON Ceramics: II. Reaction Paths , 1999 .

[5]  I. Chen,et al.  Phase relationships and stability of α'-SiAlON , 1999 .

[6]  Soo Young Lee,et al.  Effect of β–Si_3N_4 seed crystal on the microstructure and mechanical properties of sintered reaction-bonded silicon nitride , 1999 .

[7]  Yi-bing Cheng,et al.  Thermal Stability of Calcium α-sialon Ceramics , 1998 .

[8]  I. Chen,et al.  A Tough SiAlON Ceramic Based on α‐Si3N4 with a Whisker‐Like Microstructure. , 1997 .

[9]  I. Chen,et al.  A tough SiAlON ceramic based on α-Si3N4 with a whisker-like microstructure , 1997, Nature.

[10]  I. Chen,et al.  Rare‐Earth Melilite Solid Solution and Its Phase Relations with Neighboring Phases , 1996 .

[11]  Htjm Bert Hintzen,et al.  Phase formation of Ca-α-sialon by reaction sintering , 1996 .

[12]  Kiyoshi Hirao,et al.  Microstructure Control of Silicon Nitride by Seeding with Rodlike β‐Silicon Nitride Particles , 1994 .

[13]  S. Kanzaki,et al.  Preparation of Rod-Like β-Si3N4 Single Crystal Particles , 1993 .

[14]  T. Tien,et al.  Solubility Limits of α'‐SiAION Solid Solutions in the System Si,Al,Y/N,O , 1991 .