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    • 14. 发明授权
    • Dielectric composition containing kerf additive
    • 包含切痕添加剂的介电组合物
    • US5137848A
    • 1992-08-11
    • US626889
    • 1990-12-13
    • Michael F. BarkerWilliam A. CraigPaul C. DonohueKenneth W. HangMichael J. HaunColin R. Pickering
    • Michael F. BarkerWilliam A. CraigPaul C. DonohueKenneth W. HangMichael J. HaunColin R. Pickering
    • C03C8/14C03C8/20
    • C03C8/14C03C8/20
    • A dielectric composition comprising an admixture of finely divided particles of(a) 65-94 wt % of a non-reducing amorphous glass comprising of 15-27% ZnO, 8-30% alkaline earth metal oxides including 7-21% BaO, 40-60% SiO.sub.2, 3-14% Al.sub.2 O.sub.3, 0-5% PbO and 0.5-5% of a metal oxide selected from ZrO.sub.2, up to 2.5% P.sub.2 O.sub.5 and mixtures thereof, the composition being crystallizable and non-reducing when fired at 850.degree.-900.degree. C.(b) 30-5 wt % of a metal oxide of Al.sub.2 O.sub.3, ZrSiO.sub.4 and mixtures thereof,(c) 1-5 wt % of a metal oxide kerf additive of CoAl.sub.2 O.sub.4, Co/CrAl.sub.2 O.sub.4, CoO, CoCr.sub.2 O.sub.4, Cr.sub.2 O.sub.3, TiO.sub.2, and mixtures thereof,where the sum of the components a and b does not exceed 35% by weight of the total particulate admixture, and(d) optionally, 1-10 wt % of either a TCE reducing additive of zircon, mullite, silica, and mixtures thereof or a TCE increasing additive of CaZrO.sub.3, quartz, .alpha.-cristobalite and mixtures thereof.
    • 一种电介质组合物,其包含(a)65-94重量%的非还原非晶玻璃的细碎颗粒的混合物,其包含15-27%的ZnO,8-30%的碱土金属氧化物,包括7-21%的BaO,40 -60%SiO 2,3-14%Al 2 O 3,0-5%PbO和0.5-5%选自ZrO 2,至多2.5%P 2 O 5的金属氧化物及其混合物,当850℃烧制时该组合物是可结晶且不还原的 (b)30-5重量%的Al2O3,ZrSiO4的金属氧化物及其混合物,(c)1-5重量%的CoAl 2 O 4的金属氧化物切痕添加剂,Co / CrAl 2 O 4,CoO,CoCr 2 O 4 ,Cr 2 O 3,TiO 2及其混合物,其中组分a和b的总和不超过总颗粒混合物的35重量%,和(d)任选地,1-10重量%的锆离子的TCE还原添加剂 ,莫来石,二氧化硅及其混合物,或TCE增加添加剂CaZrO 3,石英,α-方英石及其混合物。