Abstract:
A lanthanum chromite ceramic powder consisting essentially of 1 mol of LaCr1-xMxO3, where M is a divalent metal selected from the group of zinc, copper and mixtures thereof and x ranges from about 0.02 to 0.2, y mols of B2O3, where y ranges from 0.0005 to 0.04, and z mols of La2O3, where the ratio z/y ranges from 1 to 3, the powder is sintered to high density by firing a compact thereof at a temperature of about 1400 DEG C in air or other atmosphere, and is particularly suited for use as interconnect material for solid oxide fuel cells.
Abstract translation:基本上由1mol LaCr1-xMxO3组成的亚铬酸镧陶瓷粉末,其中M是选自锌,铜及其混合物的二价金属,x的范围为约0.02至0.2摩尔的B 2 O 3,其中y的范围为 0.0005〜0.04,z2O3为z / y为1〜3的Z2O3,通过在空气或其他气氛中在约1400℃的温度下烧结其成型体将粉末烧结成高密度,为 特别适用于固体氧化物燃料电池的互连材料。
Abstract:
A sinter-reactive lanthanum chromite powder is prepared from the lanthanum chromite precursor LaCr1-xMxO3 (Adsorbate). The powder is crystalline, has the formula LaCr1-xMxO3, where M is selected from the group consisting of zinc, copper and mixtures thereof and x ranges from about 0.02 to 0.2, and sinters to densities higher than about 95 % of theoretical density at a temperature as low as 1400 DEG C in oxidizing atmospheres. Sintering to such high density at temperatures in the vicinity of 1400 DEG C makes the powder particularly suited for use as interconnect material for solid oxide fuel cells.
Abstract:
A lanthanum chromite ceramic powder mixture that consists essentially of 1 mol of LaCr1-xMxO3, where M is a divalent metal selected from the group consisting of magnesium, calcium and mixtures thereof and x ranges from 0.03 to 0.3; y mols of B2O3, where y ranges from 0.005 to 0.04; and z mols of La2O3, where the ratio z/y ranges from 1.1 to 3. The mixture is formed into powder compacts and sintered to near full density at temperatures as low as 1400 °C.
Abstract translation:本发明涉及亚铬酸镧陶瓷粉末的混合物,其基本上由1摩尔LaCr1-xMxO3组成,其中M是选自镁,钙及其混合物的二价金属。 ci和x在0.03和0.3之间; y摩尔的B 2 O 3,其中y在0.005和0.04之间; 和z摩尔的La 2 O 3,其中z / y比在1.1和3之间。该混合物以粉末片剂的形式生产并且在低至1400℃的温度下烧结,直到 几乎完全紧凑。
Abstract:
A sinter-reactive lanthanum chromite powder is prepared from the lanthanum chromite precursor LaCr1-xMxO3 (Adsorbate). The powder is crystalline, has the formula LaCr1-xMxO3, where M is magnesium or calcium and x ranges from about 0.03 to 0.3, and sinters to densities higher than about 95 % of theoretical density at temperature as low as 1600 DEG C in inert or reducing atmospheres. Sintering to such high density at temperatures in the vicinity of 1600 DEG C makes the powder particularly suited for use as interconnect material for solid oxide fuel cells.