摘要:
The subject of the invention is a glass-, ceramic- or vitroceramic-based substrate (1) provided on at least part of at least one of its faces with a coating (3) with a photocatalytic property containing at least partially crystalline titanium oxide. It also relates to the applications of such a substrate and to its method of preparation.
摘要:
A top plate (3) of a low-expansion crystallized glass of deep color, with a first enamel coating coated on a heating portion (5, 7, 9, 11) of the plate and a second enamel coating coated on a non-heating portion (13) around and other than the heating portion. The first enamel coating consists essentially, by weight, of 40 to 98% glass content, 5 to 55% at least one of ZrSiO.sub.4 and ZrO.sub.2 crystals, and 0 to 54% coloring pigment. The second enamel coating consists essentially, by weight, of 30 to 94% glass content, 5 to 69% TiO.sub.2 crystals, 0 to 34% coloring pigment.
摘要:
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.
摘要翻译: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。
摘要:
In order to produce matee precious metal decorations on carriers of ceramics and porcelain, before applying bright precious metal preparations, the carrier is first provided with a base layer composed of:(a) 50 to 80% by weight of a mixture of(aa) 50 to 80% by weight of a lead-free borosilicate glazed frit with(bb) 20 to 70% by weight of titanium dioxide powder and(b) 20 to 50% by weight of a mixture of(aa) 40 to 60% by weight of a modified alkyd resin having an oil content of 20 to 40% by weight and a solid content of 40 to 60% by weight and(bb) 40 to 60% by weight of an aromatic hydrocarbon.
摘要:
A method of preventing glaze defects occurring when using pigments which are provided by inclusion in zirconium silicate (zircon) comprises the incorporation into the glaze composition of an additive which is zirconium oxide, zirconium silicate, arsenic trioxide, antimony trioxide, ceric oxide, or a mixture thereof, or a precursor therefor in an amount sufficient to reduce or prevent glaze defects.
摘要:
A frit of the following approximate analysis in percent by weight______________________________________ Alumina Al.sub.2 O.sub.3 8 to 12 Boron trioxide B.sub.2 O.sub.3 40 to 60 Sodium monoxide Na.sub.2 O 6 to 14 Lead monoxide PbO 0 to 7 Calcium oxide CaO 6 to 11 Barium oxide BaO 7 to 12 Manganese oxide MnO 2 to 6 Cobalt oxide CoO 0 to 2 Silica SiO.sub.2 Under 1 ______________________________________ when admixed with other materials, in parts by weight as follows______________________________________ frit 30 to 60 aluminum powder 5 to 60 silicon powder 0 to 8 chromium trioxide 0 to 10 zirconium silicate 0 to 10 copper oxide 0 to 3 bentonite 0.5 to 3 water 70 to 80 ______________________________________ applied to an iron-based part, and then fired at 800.degree. to 950.degree. C. results in a heat-resistant weldable enamel. It is especially suited for automobile engine mufflers.
摘要:
UNIQUE DIELECTRIC COMPOSITIONS MAY BE USED TO FORMULATE THICK FILM PASTES FOR PRINTING MICROELECTRONIC CAPACITORS. THE RESULTING DIELECTRICS EXHIBIT DIELECTRIC CONSTANTS GREATER THAN ABOUT 500 AND CAPACITANCES GREATER THAN ABOUT 80,000 PICOFARADS PER SQUARE INCH AT A THICKNESS OF AT LEAST ABOUT 1.0 MIL. THE UNIQUE DIELECTRIC COMPOSITIONS COMPRISE ABOUT 55-76 PERCENT BY WEIGHT OF A FERROELECTRIC MATERIAL AND 45-24 PERCENT OF A GLASS BINDER. THE GLASS BINDER EMPLOYED COMPRISES A LEAD BARIUM BOROSILICATE GLASS AND A FERROELECTRIC MATERIAL PREVIOUSLY DISSOLVED THEREIN. THE COMPOSITION IS FORMULATED INTO A PRINTING PASTE BY FIRST DISSOLVING 20-30 PERCENT BY WEIGHT FERROELECTRIC INTO 70-80 PERCENT BY WEIGHT LEAD BARIUM BOROSILICATE GLASS BINDER, COOLING THE NEWLY FORMED GLASS TO A SOLID STATE COMMINUTING THE GLASS TO A PARTICLE SIZE OF LESS THAN ABOUT 1 MICRON AND THEREAFTER ADMIXING THE COMMINUTED GLASS WITH THE SAME PARTICULATE FERROELECTRIC IN AN AMOUNT AS INDICATED. THIS ADMIXTURE IS THEN ADDED TO A LIQUID ORGANIC CARRIER VEHICLE TO FORMULATE THE PRINTING PASTE. THE PRINTING PASTE IS THEN PRINTED INTO A CHOSEN DESIGN AND FIRED AT A TEMPERATURE OF APPROXIMATELY 1,0001,050*C. TO PRODUCE A HIGHLY DENSE, UNIFORM, AND SUBSTANTIALLY CRACK-FREE DIELECTRIC MATERIAL.