Preparation of fine-grained α-alumina powder from seeded boehmite

被引：10

作者：

Yang, Yang ^{[1
]}

Jiao, Xiuling ^{[1
]}

Chen, Bo ^{[1
]}

Chen, Dairong ^{[1
]}

机构：

[1] Shandong Univ, Sch Chem & Chem Engn, Natl Engn Res Ctr Colloidal Mat, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2013年 / 15卷 / 08期

关键词：

Fine-grained alpha-Al2O3; Seed; Agglomeration; Particle size distribution; SOL-GEL; TRANSFORMATION; GAMMA; PHASE; CORUNDUM; PSEUDOBOEHMITE; TEMPERATURE; BEHAVIOR;

D O I：

10.1007/s11051-013-1855-3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fine-grained a-alumina powder with high purity was prepared from boehmite sol with pseudoboehmite as seed. The effect of the seed on the formation temperature and the particulate properties of alpha-Al2O3 was investigated. The results showed that pseudo-boehmite seed significantly reduced the formation temperature of alpha-Al2O3. The final alpha-Al2O3 powders had an average particle size of similar to 250 nm with good dispersity and narrow particle size distribution. With the increase of the seed amount, no remarkable change was observed in the average particle size of alpha-Al2O3 particles, but the particle size distribution became narrower.

引用

页数：9

共 32 条

[1] [Anonymous], MINERAL J
[2] Bagwell RB, 1996, KEY ENG MATER, V115, P45, DOI 10.4028/www.scientific.net/KEM.115.45
[3] WATER-CONTENT OF PSEUDOBOEHMITE - NEW MODEL FOR ITS STRUCTURE
BAKER, BR
PEARSON, RM
[J]. JOURNAL OF CATALYSIS, 1974, 33 (02) : 265 - 278
[4] Bell NS, 1998, J AM CERAM SOC, V81, P1411, DOI 10.1111/j.1151-2916.1998.tb02498.x
[5] Synthesis and characterization of alumina nanoparticles by Igepal CO-520 stabilized reverse micelle and sol-gel processing
Chandradass, J.
Bae, Dong-Sik
[J]. MATERIALS AND MANUFACTURING PROCESSES, 2008, 23 (05) : 494 - 498
[6] Low-temperature synthesis of α-Al2O3
Dudnik, E. V.
Shevchenko, A. V.
Ruban, A. K.
Red'ko, V. P.
Lopato, L. M.
[J]. POWDER METALLURGY AND METAL CERAMICS, 2008, 47 (7-8) : 379 - 383
[7] Charging behavior at the alumina-water interface and implications for ceramic processing
Franks, George V.
Gan, Yang
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (11) : 3373 - 3388
[8] Preparation method of submicrometer-sized α-alumina by surface modification of γ-alumina with alumina sol
Han, KR
Lim, CS
Hong, MJ
Jang, JW
Hong, KS
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (04) : 750 - 754
[9] FIBRILLAR COLLOIDAL BOEHMITE - PROGRESSIVE CONVERSION TO GAMMA, THETA, AND ALPHA ALUMINAS
ILER, RK
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1961, 44 (12) : 618 - 624
[10] Processing and mechanical properties of Al2O3-5 vol.% Cr nanocomposites
Ji, Y
Yeomans, JA
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (12) : 1927 - 1936

← 1 2 3 4 →