Texturing of Si 3 N 4 ceramics via strong magnetic field alignment

Xinwen Zhu, Tohru Suzuki, Tetsuo Uchikoshi, Yoshio Sakka

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper reports the texture development in Si 3 N 4 by strong magnetic field alignment (SMFA), using slip casting of α-Si 3 N 4 raw powder (SN-E10) and pressureless sintering. The texture of β-Si 3 N 4 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-Si 3 N 4 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-Si 3 N 4 , particularly the unidirectionally c-axis aligned β-Si 3 N 4 by seeding the α-raw powder using the less-agglomerated β-phase particles.

Original languageEnglish
Pages (from-to)871-874
Number of pages4
JournalKey Engineering Materials
Volume368-372 PART 1
Publication statusPublished - 2008 Mar 27
Externally publishedYes

Fingerprint

Texturing
Textures
Magnetic fields
Powders
Sintering
X ray diffraction analysis
Seed
Casting
Scanning electron microscopy

Keywords

  • Ceramics
  • Seeding
  • Silicon nitride
  • Slip casting
  • Strong magnetic field
  • Texture

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Zhu, X., Suzuki, T., Uchikoshi, T., & Sakka, Y. (2008). Texturing of Si 3 N 4 ceramics via strong magnetic field alignment Key Engineering Materials, 368-372 PART 1, 871-874.

Texturing of Si 3 N 4 ceramics via strong magnetic field alignment . / Zhu, Xinwen; Suzuki, Tohru; Uchikoshi, Tetsuo; Sakka, Yoshio.

In: Key Engineering Materials, Vol. 368-372 PART 1, 27.03.2008, p. 871-874.

Research output: Contribution to journalArticle

Zhu, X, Suzuki, T, Uchikoshi, T & Sakka, Y 2008, ' Texturing of Si 3 N 4 ceramics via strong magnetic field alignment ', Key Engineering Materials, vol. 368-372 PART 1, pp. 871-874.
Zhu, Xinwen ; Suzuki, Tohru ; Uchikoshi, Tetsuo ; Sakka, Yoshio. / Texturing of Si 3 N 4 ceramics via strong magnetic field alignment In: Key Engineering Materials. 2008 ; Vol. 368-372 PART 1. pp. 871-874.
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