摘要:
A method is provided for manufacturing a humidity sensing material. Particles of a trivalent rare earth hydroxide or oxide (such as lanthanum hydroxide) are mixed with particles of barium oxide and titanium dioxide in specified proportions. The particle mixture is heated to generate a sintered mixture that is milled. The resulting milled particles are mixed with glass particles, an organic surfactant, a solvent, an organic vehicle, and an alkali hydroxide. The resulting liquid mixture is deposited as a layer thereof onto a substrate. The substrate and layer thereon are processed to remove liquid portions of the liquid mixture. Such liquid removal processing includes at least one cycle of heating the layer followed by a corresponding cycle of cooling the layer in a nitrogen atmosphere containing less than 25 parts per million of oxygen.
摘要:
An ink of the formula: 60-80% by weight BaTi03 particles coated with Si02; 5-50% by weight high dielectric constant glass; 0.1-5% by weight surfactant; 5-25%, by weight solvent; and 5-25% weight organic vehicle. Also a method of manufacturing a capacitor comprising the steps of: heating particles of BaTi03 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of Si02 over the particles; mechanically separating the particles; Incorporating them into the above described ink formulation; depositing the ink on a substrate; and heating at 850-900°C for less than 5 minutes and allowing the ink and substrate to cool to ambient in N2 atmosphere. Also a dielectric made by: heating particles of BaTi03 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of Si02 over the particles; mechanically separating me particles; forming them into a layer; and heating at 850-900°C and allowing the layer to cool in N2 atmosphere.
摘要:
Electronic devices are produced from dielectric compositions comprising a mixture of precursor materials that, upon firing, forms a dielectric material comprising a barium-titanium-tungsten-silicon oxide.
摘要翻译:提供能够实现低介电常数和高强度的低温烧结陶瓷材料和通过烧结材料获得的陶瓷烧结体。 低温烧结陶瓷材料或陶瓷烧结体含有以SiO 2为65〜80重量份的Si,BaO换算为5〜25重量份Ba,Ba为1-10重量份 Al 2 O 3,以MnO计为0.1〜5重量份的Mn,以B 2 O 3换算为0.1〜5重量份的B,以Li 2 O计0.1重量份以上且Li:3重量份以下。 该陶瓷烧结体有利地用于陶瓷电子部件,例如多层电路板(1)或耦合器。
摘要:
The present invention relates to a method for making a three dimensional carbon structure and also to a sintered article comprising pyrolysed carbon particles. The method comprises sintering a powdered organic material, preferably using selective laser sintering, to form a sintered three dimensional structure having a desired shape. The sintered structure is then pyrolysed to form the final carbon structure. The method is particularly useful in the production of biomedical implants such as bone scaffolds and joint replacements. In some embodiments, the powdered organic material is lignin which provides a renewable and highly cost effective starting material for the method of the present invention.
摘要:
The present disclosure provides a glass ceramic composite electrolyte comprising gadolinium doped ceria and glass composite with desired ionic conductivity in the temperature range of 400 to 600°C, suitable for applications in solid oxide fuel cells. Also disclosed is a process for the preparation of the glass ceramic composite electrolyte.
摘要:
Disclosed are ceramic bodies comprised of a tialite phase and at least one silicate phase with a rare earth oxide and zirconium additions and methods for the manufacture of the same.