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    • 11. 发明授权
    • Anode coated with .beta.-lead dioxide and method of producing same
    • 用β-二氧化碳涂覆的阳极及其制备方法
    • US4415411A
    • 1983-11-15
    • US236908
    • 1981-02-23
    • Hideo KanaiAkihiro ShinagawaTakahiro YamazakiReiichi Itai
    • Hideo KanaiAkihiro ShinagawaTakahiro YamazakiReiichi Itai
    • C25B11/02C25B11/16C25C7/02C25D17/12
    • C25B11/16C25B11/02C25C7/02
    • An anode coated with .beta.-lead dioxide which comprises a titanium substrate, titanium expanded metal welded on at least one side of the titanium substrate, titanium reinforcing bars welded on the peripheries of said expanded metal to both said expanded metal and said substrate, at least one intermediate layer being applied on said substrate and said expanded metal, said intermediate layer consisting either of an alloy or an oxide of platinum group metals; and a .beta.-lead dioxide coating layer on said intermediate layer.The anode of this invention has particularly good dimensional stability and provides excellent adhesion of the .beta.-lead dioxide coating layer to the substrate, and hence is highly suitable for the electrolytic production of chlorates, perchlorates, and periodates, and furthermore it is also useful as an insoluble anode in electroplating and in electrolytic treatment of waste water.
    • 涂覆有β-二氧化碳的阳极,其包括钛基底,焊接在钛基底的至少一侧上的钛膨胀金属,至少焊接在所述多孔金属和所述基底两者上的钛钢筋,至少 一个中间层施加在所述基材和所述多孔金属上,所述中间层由铂族金属的合金或氧化物组成; 和所述中间层上的β-二氧化碳涂层。 本发明的阳极具有特别好的尺寸稳定性,并且提供了β-二氧化铅涂层对基材的极好的粘合性,因此非常适用于氯酸盐,高氯酸盐和高碘酸盐的电解生产,此外它也可用作 在电镀和电解处理废水中的不溶性阳极。
    • 16. 发明授权
    • Process for producing an improved alumina-zirconia composite sintered
material
    • 制备改进的氧化铝 - 氧化锆复合烧结材料的方法
    • US5061665A
    • 1991-10-29
    • US462095
    • 1990-01-08
    • Ichiro SekiAkihiro KanoToshiki HasegawaMinoru AbeIsao Isa
    • Ichiro SekiAkihiro KanoToshiki HasegawaMinoru AbeIsao Isa
    • C04B35/484C09K3/14
    • C09K3/1427C04B35/484
    • Improved alumina-zirconia composite sintered materials with sufficient high mechanical strength and thermal shock resistance as well as excellent hardwearing resistance are made by mixing, heating and melting zirconia and alumina, then the produced melt was quenched, and the resulting solid was ground and milled while adding thereto at least one compound of ceria and/or titania, to an average grain size of from about 0.5 to about 1.5 .mu.m, and subjected the resulting powder to molding and sintering at a temperature of from 1450.degree. to about 1600.degree. C., said zirconia, ceria and titania being employed in the amount of about 10-20%, about 3-7%, and about 15-25% by weight, respectively, plus the balance of alumina. Said sintered materials are useful for employment in structural materials, refractorial materials, erosion resistance materials, cutting tool materials, grinding and polishing materials, etc.
    • 通过混合,加热和熔融氧化锆和氧化铝制备了具有足够高的机械强度和耐热冲击性以及优异的耐耐磨性的改进的氧化铝 - 氧化锆复合烧结材料,然后将所生产的熔体淬火,并将所得固体研磨和研磨,同时 将至少一种二氧化铈和/或二氧化钛的化合物加入至约0.5至约1.5μm的平均粒度,并将所得粉末在1450℃至约1600℃的温度下进行成型和烧结。 所述氧化锆,二氧化铈和二氧化钛的用量分别为约10-20%,约3-7%和约15-25%(重量),加上余量的氧化铝。 所述烧结材料可用于结构材料,折射材料,耐腐蚀材料,切削工具材料,研磨抛光材料等。