Title:
球状ユークリプタイト粒子およびその製造方法
Document Type and Number:
Japanese Patent JP6815087
Kind Code:
B2
Abstract:
The present invention addresses the problem of providing: spherical eucryptite particles which have higher circularity than in the prior art, have a large negative thermal expansion and a high thermal conductivity, have high flowability, dispersibility, and filling capability, and are also applicable in the field of semiconductors; and a method for producing the spherical eucryptite particles. As a means for solving the problem, the present invention provides: the method for producing the spherical eucryptite particles characterized by heat treating, at 600 to 1100° C., spherical particles which have been thermally sprayed with a feedstock powder that includes 45 to 55 mol % of SiO2, 20 to 30 mol % of Al2O3, and 20 to 30 mol % of Li2O, and obtaining spherical particles that include 89% or more of a eucryptite crystalline phase; and the spherical eucryptite particles obtained by this method.
Inventors:
Yutaka Sato
Katsumasa Yagi
Mutsuto Tanaka
Masanori Ae
Tokuda Shozo
Tadashi Matsumoto
Katsumasa Yagi
Mutsuto Tanaka
Masanori Ae
Tokuda Shozo
Tadashi Matsumoto
Application Number:
JP2016064052A
Publication Date:
January 20, 2021
Filing Date:
March 28, 2016
Export Citation:
Assignee:
Nippon Steel Chemical & Material Co., Ltd.
International Classes:
C03C10/12; C03B19/06
Domestic Patent References:
| JP2002104841A | ||||
| JP2001172048A | ||||
| JP2008260669A | ||||
| JP2002012447A | ||||
| JP2015127288A | ||||
| JP2015214440A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Yoshihiro Kobayashi
Yasuo Dogaki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Yoshihiro Kobayashi
Yasuo Dogaki