A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LiAlSiO4 microspheres with negative thermal expansion coefficient and preparation method of LiAlSiO4 microspheres
The invention discloses LiAlSiO4 microspheres with a negative thermal expansion coefficient and a preparation method of the LiAlSiO4 microspheres. The LiAlSiO4 microspheres are prepared as follows: Li2Co3 powder, SiO2 powder and Al2O3 powder are uniformly mixed in a mortar, heated to 1,300 DEG C-1,400 DEG C to be melted, preserved at the temperature for over 5 hours and cooled in ice water, a LiAlSiO4 block is obtained and subjected to ball milling, LiAlSiO4 particles with different particle sizes are obtained, the LiAlSiO4 particles subjected to ball milling are dissolved with deionized water, and sol is obtained; finally, the sol is subjected to flame jet in an acetylene atmosphere, and the LiAlSiO4 microspheres with a negative thermal expansion coefficient are obtained. The negative thermal expansion coefficient material with controllable size, uniform distribution and good sphericity is prepared with a two-step method.
LiAlSiO4 microspheres with negative thermal expansion coefficient and preparation method of LiAlSiO4 microspheres
The invention discloses LiAlSiO4 microspheres with a negative thermal expansion coefficient and a preparation method of the LiAlSiO4 microspheres. The LiAlSiO4 microspheres are prepared as follows: Li2Co3 powder, SiO2 powder and Al2O3 powder are uniformly mixed in a mortar, heated to 1,300 DEG C-1,400 DEG C to be melted, preserved at the temperature for over 5 hours and cooled in ice water, a LiAlSiO4 block is obtained and subjected to ball milling, LiAlSiO4 particles with different particle sizes are obtained, the LiAlSiO4 particles subjected to ball milling are dissolved with deionized water, and sol is obtained; finally, the sol is subjected to flame jet in an acetylene atmosphere, and the LiAlSiO4 microspheres with a negative thermal expansion coefficient are obtained. The negative thermal expansion coefficient material with controllable size, uniform distribution and good sphericity is prepared with a two-step method.
LiAlSiO4 microspheres with negative thermal expansion coefficient and preparation method of LiAlSiO4 microspheres
JIANG WEI (author) / WANG TIANHE (author) / ZHOU SHUAI (author) / LI FENGSHENG (author) / TIAN RENBING (author)
2015-07-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Thermal expansion behavior of a β-LiAlSiO4/Cu composite
| British Library Online Contents | 2009
Pretreated gel microspheres and ceramic microspheres and preparation method thereof
| European Patent Office | 2024
Preparation and thermal decomposition of PS/AG microspheres
| British Library Online Contents | 2009