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- Title
The Effect of Sintering Temperature on Prepared and Properties of Calcium hexaluminate/gehlenite Composites.
- Authors
Bai, P.; Chai, Y.; Qiu, Y.; Gong, C.; Tian, Y.
- Abstract
In this paper, the calcium-hexaluminate/gehlenite (CA6/C2AS) composites have been synthesized by traditional high temperature solid state method using magnesium slag as a source of calcium and silicon. The phases, micromorphology and physical properties of the samples were characterized and analysized. The results show that the CA6 and C2AS grains formation starts at 1300°C, the main reaction has completed above 1450°C. The granular particles of C2AS are distributed in CA6 grain boundaries. With the sintering temperature increased, the amount and the grains of CA6 grow up gradually, while the amount of C2AS reduces. The CA6 grains don't growth excessively for the space hindrance function. With the sintering temperature increased the body density, linear shrinkage and flexural strength increases, while the apparent porosity decreases.
- Subjects
SINTERING; TEMPERATURE effect; CALCIUM compounds; COMPOSITE materials; STRENGTH of materials
- Publication
Science of Sintering, 2014, Vol 46, Issue 3, p315
- ISSN
0350-820X
- Publication type
Article
- DOI
10.2298/SOS1403315B