The effect of crystallite size on the thermal phase change and porous properties of boehmite was investigated using boehmites with crystallite sizes of 2.9 to 24.4 nm and boehmite gels prepared by precipitation and hydrothermal methods. The dehydroxylation temperature of boehmite increases, its phas
β¦ LIBER β¦
Crystallite size effect on the pressure-induced phase transformation of ZrO2
β Scribed by S. Kawasaki; T. Yamanaka; S. Kume; T. Ashida
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 663 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0038-1098
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## Abstract A kinetic investigation on the reduction of nanometerβsized nickel oxide particles (supported and unsupported) with hydrogen was carried out. The reduction behavior was found to be related to the average size of NiO crystallites. When the NiO crystallite size was less than about 20 nm,