C04B2235/95

ELECTROCALORIC EFFECT ELEMENT
20220307735 · 2022-09-29 ·

An electrocaloric effect element includes a laminate including an electrode layer mainly including Pt and a ceramic layer that are stacked, in which the ceramic layer has a perovskite structure and mainly includes a ceramic including Pb, Sc, and Ta, where a content ratio of Sc is y, a content ratio of Ta is 1−y, and a range of the y is about 0.450≤y≤about 0.495.

Li3Mg2SbO6-BASED MICROWAVE DIELECTRIC CERAMIC MATERIAL EASY TO SINTER AND WITH HIGH Q VALUE, AND PREPARATION METHOD THEREFOR

A Li.sub.3Mg.sub.2SbO.sub.6-based microwave dielectric ceramic material easy to sinter and with high Q value, and a preparation method thereof are disclosed. A chemical formula of the material is Li.sub.3(Mg.sub.1-xZn.sub.x).sub.2SbO.sub.6, wherein 0.02≤x≤0.08. The preparation method includes: 1) mixing and ball-milling Sb.sub.2O.sub.3 and Li.sub.2CO.sub.3 according to a chemical ratio and then drying, and conducting pre-sintering to obtain a Li.sub.3SbO.sub.4 phase; and 2) mixing and ball-milling MgO, ZnO and Li.sub.3SbO.sub.4 powder according a chemical ratio of Li.sub.3(Mg.sub.1-xZn.sub.x).sub.2SbO.sub.6 and then drying, conducting granulation and sieving after adding an adhesive, pressing into a cylindrical body, and sintering the cylindrical body into ceramic in the air at 1325° C. and under normal pressure, wherein a dielectric constant is 7.2-8.5, a quality factor is 51844-97719 GHz, and a temperature coefficient of resonance frequency is −14-1 ppm/° C.

ALUMINUM/CERAMIC BONDING SUBSTRATE AND METHOD FOR PRODUCING SAME

There is provided an aluminum/ceramic bonding substrate having a ceramic substrate, an aluminum plate of an aluminum alloy which is bonded directly to one side of the ceramic substrate, an aluminum base plate of the aluminum alloy which is bonded directly to the other side of the ceramic substrate, and a plate-shaped reinforcing member which has a higher strength than that of the aluminum base plate and which is arranged in the aluminum base plate to be bonded directly to the aluminum base plate, wherein the aluminum alloy contains 0.01 to 0.2% by weight of magnesium, 0.01 to 0.1% by weight of silicon, and the balance being aluminum and unavoidable impurities.

Extruded Ceramic Nanofibers and Derived Materials
20220306544 · 2022-09-29 ·

The present invention relates to gels and processes for making bundles of aligned ceramic nanofibers, ceramic nanostructures made by such processes, and methods of using such ceramic nanostructures. Such process is templated via block copolymer self-assembly but does not require any post processing thermal and/or solvent annealing steps. As a result, such process is significantly more efficient and scalable than other processes that are templated via block copolymer self-assembly. The resulting fibers are aligned according to the direction of deposition, making steps where individual fibers are bundled unnecessary.

FERRITE COMPOSITION AND ELECTRONIC COMPONENT

A ferrite composition comprises a main component and a subcomponent. The main component includes 32.0 to 46.4 mol % of iron oxide in terms of Fe.sub.2O.sub.3, 4.4 to 14.0 mol % of copper oxide in terms of CuO, and 8.4 to 56.9 mol % of zinc oxide in terms of ZnO. The subcomponent includes 0.53 to 11.00 parts by weight of a silicon compound in terms of SiO.sub.2, 0.1 to 12.8 parts by weight of a tin compound in terms of SnO.sub.2, and 0.5 to 7.0 parts by weight of a bismuth compound in terms of Bi.sub.2O.sub.3, with respect to 100 parts by weight of the main component.

POROUS MATERIAL INCLUDING CARBON NANOHORNS AND USE THEREOF

The objective of the present teaching is to provide a porous material including carbon nanohorns. The porous material includes carbon nanohorns and has a predetermined three-dimensional shape.

COMPOSITION FOR FORMING Mn-DOPED PZT-BASED PIEZOELECTRIC FILM AND Mn-DOPED PZT-BASED PIEZOELECTRIC FILM
20170222127 · 2017-08-03 ·

A composition for forming a PZT-based piezoelectric film formed of Mn-doped composite metal oxides is provided, the composition including: PZT-based precursors containing metal atoms configuring the composite metal oxides; a diol; and polyvinylpyrrolidone, in which when a metal atom ratio in the composition is shown as Pb:Mn:Zr:Ti, the PZT-based precursors are contained so that a metal atom ratio of Pb is satisfied to be from 1.00 to 1.20, a metal atom ratio of Mn is satisfied to be equal to or greater than 0.002 and less than 0.05, a metal atom ratio of Zr is satisfied to be from 0.40 to 0.55, a metal atom ratio of Ti is satisfied to be from 0.45 to 0.60, and the total of Zr and Ti in a metal atom ratio is 1.

Oxide sintered body, production method therefor, target, and transparent conductive film

A target for sputtering which enables to attain high rate film-formation of a transparent conductive film suitable for a blue LED or a solar cell. A oxide sintered body includes an indium oxide and a cerium oxide, and one or more oxide of titanium, zirconium, hafnium, molybdenum and tungsten. The cerium content is 0.3 to 9% by atom, as an atomicity ratio of Ce/(In+Ce), and the content of cerium is equal to or lower than 9% by atom, as an atomicity ratio of Ce/(In+Ce). The oxide sintered body has an In.sub.2O.sub.3 phase of a bixbyite structure has a CeO.sub.2 phase of a fluorite-type structure finely dispersed as crystal grains having an average particle diameter of equal to or smaller than 3 μm.

Alumina isopipes for use with tin-containing glasses

Isopipes (13) for making glass sheets using a fusion process are provided. The isopipes are made from alumina materials which have low levels of the elements of group IVB of the periodic chart, i.e., Ti, Zr, and Hf, as well as low levels of Sn. In this way, the alumina isopipes can be used with glasses that contain tin (e.g., as a fining agent or as the result of the use of tin electrodes for electrical heating of molten glass) without generating unacceptable levels of tin-containing defects in the glass sheets, specifically, at the sheets' fusion lines. The alumina isopipes disclosed herein are especially beneficial when used with tin-containing glasses that exhibit low tin solubility, e.g., glasses that have (RO+R.sub.2O)/Al.sub.2O.sub.3 ratios between 0.9 and 1.1, where, in mole percent on an oxide basis, (RO+R.sub.2O) is the sum of the concentrations of the glass' alkaline earth and alkali metal oxides and Al.sub.2O.sub.3 is the glass' alumina concentration.

Shaped abrasive particle including dopant material and method of forming same

A method of forming a shaped abrasive particle including extruding a mixture into a form, applying a dopant material to an exterior surface of the form, and forming a precursor shaped abrasive particle from the form.