Wear-resistant microcrystalline alumina ceramic powder, wear-resistant microcrystalline alumina ceramic and preparation method and application of wear-resistant microcrystalline alumina ceramic
The invention discloses wear-resistant microcrystalline alumina ceramic powder, a wear-resistant microcrystalline alumina ceramic and a preparation method and application of the wear-resistant microcrystalline alumina ceramic. The powder comprises 99-99.99% of sub-micron alpha-Al2O3 powder and 0.01-...
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Main Authors | , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
03.01.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses wear-resistant microcrystalline alumina ceramic powder, a wear-resistant microcrystalline alumina ceramic and a preparation method and application of the wear-resistant microcrystalline alumina ceramic. The powder comprises 99-99.99% of sub-micron alpha-Al2O3 powder and 0.01-1% of flux powder, wherein the chemical composition range of the flux powder comprises 20-40% of MgO, 0-10% of Al2O3 and 50-80% of Y2O3; during preparation, ball milling, granulation, molding and aging are performed, a low-temperature fast-firing method is adopted for firing at 1450-1620 DEG C for 1-4 hours. The prepared microcrystalline alumina ceramic has the advantages of fine grain size, high density and excellent abrasion resistance, use requirements of a high-purity ultrafine powder mechanical grinding system can be met, and a simple production process, low requirements for equipment and good application prospects are achieved.
本发明公开了一种耐磨微晶氧化铝陶瓷粉体、耐磨微晶氧化铝陶瓷及制备方法和应用,粉体采用亚微米α-AlO粉99-99.99%,熔剂粉0.01-1%配比,熔剂的化学组成范 |
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Bibliography: | Application Number: CN201910998715 |