| Sintering Characteristics of Indian Magnesites
Up to z,ooooC* |
J. c. BANERJEE, s. P. BANERJEE AND N. R. SIRCAR
Pages : 121-130
DOI : DOI:10.1080/0371750X.1967.10855597 |
| Abstract |
| The phenomenological effects of calcination as expressed by such properties as
shrinkage, specific gravity, bulk density and porosity were investigated on magnesites
from different sources in India, over temperatures ranging from 600°C to 2000°C.
No single property is adequate to assess properly the quality of a magnesite sinter.
The maximum contraction occurs in the range of 1400°C to 1550°C for the different
samples and the onset of shrinkage is contemporaneous with the initiation of sintering.
The highest specific ·gravity is usually attained around 1550°C to 1700°C depending
on the composition. But the bulk density continues to increase steadily with temperature.
The apparent porosity undergoes a major reduction around 1400°C and decreases
much less rapidly thereafter up to the highest temperature. The larger the growth of
periclase and the more intimate the grain to grain contact, the lower is the porosity. |
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