C04B2235/606

Preparation of sinterable garnet-structure complex oxide powder and manufacturing of transparent ceramics

A garnet-structure complex oxide powder having formula (1) is prepared by adding an aqueous solution containing (a) Tb ion, an aqueous solution containing (b) Al ion, and an aqueous solution containing (c) Sc ion to a co-precipitating aqueous solution, to induce a co-precipitate of components (a), (b) and (c), filtering, heat drying and firing the co-precipitate.
(R.sub.1-xSc.sub.x).sub.3(A.sub.1-ySc.sub.y).sub.5O.sub.12  (1)
R is yttrium or a lanthanoid element, typically Tb, A is a Group 13 element, typically Al, x and y are 0<x<0.08 and 0.004<y<0.16.

Modified Ni—Zn ferrites for radiofrequency applications

Embodiments disclosed herein relate to using cobalt (Co) to fine tune the magnetic properties, such as permeability and magnetic loss, of nickel-zinc ferrites to improve the material performance in electronic applications. The method comprises replacing nickel (Ni) with sufficient Co.sup.+2 such that the relaxation peak associated with the Co.sup.+2 substitution and the relaxation peak associated with the nickel to zinc (Ni/Zn) ratio are into near coincidence. When the relaxation peaks overlap, the material permeability can be substantially maximized and magnetic loss substantially minimized. The resulting materials are useful and provide superior performance particularly for devices operating at the 13.56 MHz ISM band.

LAMINATION-SHAPED FIRED BODY, METHOD FOR PRODUCING LAMINATION-SHAPED FIRED BODY, AND KIT FOR PRODUCING LAMINATION-SHAPED FIRED BODY
20210246074 · 2021-08-12 ·

The present invention provides a method for producing a lamination-shaped fired body. This production method includes a shaping step (S10) of shaping a lamination-shaped article by using a lamination shaping powder that contains non-hydrating reaction raw material particles, an impregnation step (S20) of impregnating the lamination-shaped article with a coupling liquid that contains a coupling agent, and a firing step (S30) of firing the lamination-shaped article so as to obtain a lamination-shaped fired body, implemented following the impregnation step.

Polychromatic Zirconia Bodies and Methods of Making the Same
20210230077 · 2021-07-29 ·

A ceramic body is provided that is suitable for use in dental applications to provide a natural aesthetic appearance. A colorized ceramic body is formed that has at least one color region and a color gradient region. A ceramic body is formed having at least two color regions and a color gradient that forms a transition region between two color regions. A method for making the colorized ceramic body includes unidirectional infiltration of a coloring composition into the ceramic body.

Honeycomb structure
11066336 · 2021-07-20 · ·

A honeycomb structure includes honeycomb segments, bonding layers and a circumferential wall. The bonding layers include bottomed-hollow voids which extend toward an internal side in an axial direction from an end face of the honeycomb structure and which are formed at at least one of intersections, and a ratio of a depth of each void in the axial direction to a length of each honeycomb segment in the axial direction is 5% or more.

COMPOSITE FORMED OF CUBIC BORON NITRIDE WITHOUT TI-BASED CERAMIDE AND METHOD OF MAKING THEREOF
20210238098 · 2021-08-05 ·

A cubic boron nitride (cBN)-based composite including about 30-65 vol. % cBN, about 3-30 vol. % zirconium (Zr)-containing compounds, about 0-10 vol. % cobalt-tungsten-borides (Co.sub.xW.sub.yB.sub.z), about 2-30 vol. % aluminum oxide (Al.sub.2O.sub.3), about 0.5-10 vol. % tungsten borides, and less than or equal to about 5 vol. % aluminum nitride (AlN).

ADDITIVE MANUFACTURING METHOD FOR MAKING NON-OXIDE CERAMIC ARTICLES, AND AEROGELS, XEROGELS, AND POROUS CERAMIC ARTICLES

The present disclosure provides a method of making a non-oxide ceramic part. The method includes obtaining a photopolymerizable slurry; selectively curing the photopolymerizable slurry to obtain a gelled article; drying the gelled article to form an aerogel article or a xerogel article; heat treating the aerogel article or the xerogel article to form a porous ceramic article; and sintering the porous ceramic article to obtain a sintered ceramic article. The photopolymerizable slurry includes non-oxide ceramic particles; at least one radiation curable monomer; a solvent; a photoinitiator; an inhibitor; and at least one sintering aid. Further, aerogels, xerogels, porous ceramic articles, and non-oxide ceramic articles are provided. In addition, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.

Method for producing porous body

A method for producing a porous body, comprising a raw-material mixing step of mixing talc having an average particle size of 1 μm or more and 18 μm or less, alumina, an auxiliary raw material containing a material that undergoes a eutectic reaction with talc and being prepared in an amount so as to satisfy a weight ratio of 0.5% or more and 1.5% or less by weight relative to the talc, and a pore-forming agent, to provide green body, and a molding and firing step of molding the green body to provide a compact and firing this compact at a firing temperature of 1350° C. to 1440° C.

REFRACTORY PRODUCT, A BATCH FOR PRODUCING THE PRODUCT, A METHOD FOR THE PRODUCTION OF THE PRODUCT AND A USE OF THE PRODUCT
20210179495 · 2021-06-17 ·

The invention relates to a refractory product, a batch composition for producing said product, a method for producing the product and the use of the refractory product.

Additive Manufacturing of Structural Components on the Basis of Silicone Carbide with Embedded Diamond Particles
20210179498 · 2021-06-17 ·

The invention relates to a method for producing structural components that have diamond particles embedded in a silicon carbide matrix, and to the structural components that can be obtained by this method.