Effect of production conditions on the corrosion resistance of lanthanum hexaboride powders and parts made from them
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It has been established that hydrochloric acid treatment is an effective means of ridding an industrial lanthanum hexaboride powder of impurities. It is shown that acid treatment of industrial LaB6 powders substantially improves the corrosion resistance of parts made from them by powder metallurgy techniques. A mechanism of rupture of hot-pressed and sintered lanthanum hexaboride parts is proposed.
KeywordsHydrochloric Acid Corrosion Resistance Lanthanum Powder Metallurgy Acid Treatment
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