抄録
The application of mineralogy to making refractories was outlined. Prior to this century, the relation of mineralogy to refractory industries had been confined to the range of discovering and developing nonmetallic ore deposits for raw materials of refractories. With the advent of modern measuring apparatuses employing X-rays early in this century, mineralogy and refractory researches have shared the same studying means and become connected each other more intimately. On the other hand, a basic difference remains between the two: Mineralogy never strives to produce materials of definite shape or dimensions while refractories are always required to maintain both of the expected physical properties and the specified dimensions. Insofar as the phase diagrams are concerned, fused cast refractories maintain a closer relation to mineralogy than any other type of refractories such as burned bricks, etc. The recommended range of chemical composition of fused cast refractories called AZS is also discussed, construing the crystallization course in the phase diagram, as an example.
