发明名称 METHOD FOR MANUFACTURING A COLOURED ITEM, IN PARTICULAR COLOURED ORANGE, MADE OF ZIRCONIA, AND COLOURED ZIRCONIA DECORATIVE ITEM OBTAINED ACCORDING TO SAID METHOD
摘要 The invention concerns a method for fabricating an orange, zirconia-based article, characterized in that it includes the series of steps consisting in creating a first mixture comprising a zirconia powder, 3 to 20% by weight of at least one stabilizer chosen from the group of oxides comprising yttrium oxide, magnesium oxide, and calcium oxide, alone or in combination, 0.1% to 5% by weight of at least one element intended to form a vitreous phase, and chosen from the group comprising silicon oxide, aluminium oxide, lithium oxide and yttrium oxide, alone or in combination, 1% to 6% by weight of a cerium oxide powder; creating a second mixture including said first mixture and a binder; creating a granulated mixture by granulating said second mixture; forming a green body by giving said second granulated mixture the shape of the desired article; air sintering for at least thirty minutes at a temperature comprised between 1,250 and 1,500° C. and annealing the desired article at a temperature comprised between 700° C. and 1,350° C. for a period comprised between 30 minutes and 20 hours in a reducing atmosphere, and polishing said sintered green body.
申请公布号 EP2991950(B1) 申请公布日期 2017.03.22
申请号 EP20140721385 申请日期 2014.05.05
申请人 Comadur S.A. 发明人 ACTIS-DATTA, Arnaud
分类号 C04B35/486;C04B35/48;C04B35/626;C04B35/63;C04B35/64 主分类号 C04B35/486
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