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Sintering and fusing methods were used for the synthesis of high-chromia grains. It was difficult for their sintering body to densify by the sintering process, but high densification grains with high chromia content could be obtained by the fusing process. High performance Cr 2 O 3 -Al 2 O 2 -ZrO 2 refractories needed a suitable amount of alumina powder and...
The paper discusses a simple gallery test with freely suspended explosives, for evaluation of safety properties of permissible explosives for coal mines.
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