摘要:
Process for producing coated mixed lithium oxide particles, in which mixed lithium oxide particles and a mixture comprising aluminium oxide and titanium dioxide are subjected to dry mixing by means of a mixing unit having a specific power of 0.1-1 kW per kg of mixed lithium oxide particles and mixture used, in total, under shearing conditions. Coated mixed lithium oxide particles comprising a mixture of aluminium oxide and titanium dioxide as coating material, wherein the aluminium oxide and the titanium dioxide are in the form of aggregated primary particles and the weight ratio of aluminium oxide to titanium dioxide is 10:90-90:10. Battery cell comprising the coated mixed lithium oxide particles.
摘要:
The present disclosure relates to the formation of polycrystalline diamond materials with fine diamond grains and nano-sized particles of a grain growth inhibitor. In one embodiment, a method of fabricating a polycrystalline diamond material is provided. The method includes providing a mixture of diamond particles with an average particle size of about 1 micron or less, distributing a plurality of nano-sized titanium-containing particles with the diamond mixture, to act as a grain growth inhibitor, and sintering the mixture of diamond particles and titanium-containing particles at high pressure and high temperature to create a polycrystalline structure of sintered diamond grains. The sintered diamond grains have an average size of about 1 micron or less.
摘要:
A process for the fabrication of a SiC-based article that includes preparing an aqueous suspension with SiC powder, a titanium source, a carbon source and boron carbide powder, spray drying the mixture to obtain a powder, preparing a green body from the powder, applying heat treatment to the green body in a pyrolysis/thermolysis step, pressureless sintering the green body, optimally followed by HIPing for further densification.
摘要:
Disclosed are a nano particle complex and a method of fabricating the same. The nano particle complex includes a nano particle including a compound semiconductor; and a protective layer surrounding the nano particle and including a metal oxide.
摘要:
An angle-dependent interference pigment based on transparent or translucent inorganic flake serving as a substrate is provided. The substrate is coated by coatings (A)+(B)+(C) and optionally coating (D), so as to form a “high-low-high” refractive index layered structure. The coatings (A) and (C) consist of metal oxides, silicate, aluminates and/or a mixture thereof. The coating (B) consist of silicon oxide, hydrous silicon oxide, aluminum oxide, hydrous aluminum oxide, magnesium oxide, hydrous magnesium oxide and/or a mixture thereof. The angle-dependent interference pigments have high color saturation in the transitional region and a significantly gradual color change in the color changing region. The present pigments can be used as colored coatings, including printing ink, or can be used in the preparation of plastics, glass, ceramics and the like. The pigment of the present invention is particularly used in the cosmetic industry which has a very high requirement on gradual color change.
摘要:
It is an object of the present invention to provide: a modified perovskite-type composite oxide, which effectively suppresses elution of A-site metals from a perovskite-type composite oxide, and which can be particularly preferably used as an inorganic filler for a composite dielectric body; a method for producing the same; and a composite dielectric material using the same. The modified perovskite-type composite oxide of the present invention is produced by primarily coating the particle surface of a perovskite-type composite oxide with silica and then secondarily coating it with a coupling agent, characterized in that the layer primarily coated with silica is produced by performing a heat treatment at 800° C. to 1200° C. on hydrolyzed silica obtained by the hydrolysis of tetraalkoxysilane.
摘要:
Provided is a modified perovskite type composite oxide in which the dielectric characteristics are equal to or better than those prior to modification, there is no substantial elution of coating components from the modifying coating components, and elution of the A-site metals is suppressed effectively, while the cracking traits are good. A modified perovskite type composite oxide in which the particle surface of a perovskite type composite oxide is firstly coated with at least one selected from a group consisting of TiO2, Al2O3, ZrO2, and Nd2O3, wherein the first coating is formed by hydrolyzing at least one selected from a group consisting of a hydrolyzable TiO2 precursor, a hydrolyzable Al2O3 precursor, a hydrolyzable ZrO2 precursor, and a hydrolyzable Nd2O3 precursor, and then calcining it at 700° C. to 1200° C.
摘要翻译:提供了电介质特性等于或优于改性前的改性钙钛矿型复合氧化物,涂层成分从改性涂层组分中没有实质性的洗脱,有效抑制了A-位金属的洗脱, 而龟裂性状好。 一种改性钙钛矿型复合氧化物,其中首先用选自TiO 2,Al 2 O 3,ZrO 2和Nd 2 O 3中的至少一种涂覆钙钛矿型复合氧化物的颗粒表面,其中通过水解至少一种 选自可水解的TiO 2前体,可水解的Al 2 O 3前体,可水解的ZrO 2前体和可水解的Nd 2 O 3前体,然后在700℃至1200℃下煅烧。
摘要:
Disclosed are yellowing-stable, silver-white effect pigments having high whiteness based on synthetic mica flakes and to the use thereof in paints, lacquers, printing inks, plastics, button pastes, ceramic materials, glasses, for coloring seed, as dopant in laser markings of plastics and papers, as additive for laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors and in cosmetic formulations, and for the preparation of pigment compositions and dry preparations.