Patent classifications
C04B2235/3821
BORON/BORON CARBIDE POWDER, CHOPPED CARBON FIBER AND CARBON BASED COMPOSITES FOR HEAT SINKS
A method of fabricating a brake component is disclosed. In various embodiments, the method includes preparing a mixture comprising a chopped fiber material, a boron-based powder and a binder; applying a pressure to the mixture while in a die to form a preform; and densifying the preform via a chemical vapor infiltration process to form a densified component.
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.
Self-healing matrix for a ceramic composite
A method for forming a self-healing ceramic matrix composite (CMC) component includes depositing a first self-healing particulate material in a first region of a CMC preform of the CMC component and depositing a second self-healing particulate material having a different chemical composition than the first self-healing particulate material in a second region of the CMC preform distinct from the first region.
BORON CARBIDE COMPOSITE AND PRODUCTION METHOD THEREFOR
The present disclosure provides a boron carbide composite material having a novel composition with excellent mechanical properties, and a production method therefor. The boron carbide composite material has high fracture toughness and may be applied as a lightweight bulletproof ceramic material. The boron carbide composite material is a boron carbide/silicon carbide/titanium boride/graphite (B.sub.4C—SiC—TiB.sub.2—C) composite material. The composite material may overcome a technical limitation on increasing the fracture toughness of the boron carbide composite material, and may be produced as a high-density boron carbide composite material using a reactive hot-pressing sintering process at a relatively low temperature. The boron carbide composite material having excellent mechanical properties may be applied to general industrial wear-resistant parts and nuclear-power-related industrial parts, and particularly, may be actively used as a lightweight bulletproof material for personal use and for military aircraft including helicopters.
ELECTROSTATIC CHUCK MANUFACTURING METHOD, ELECTROSTATIC CHUCK, AND SUBSTRATE PROCESSING APPARATUS
A method of manufacturing an electrostatic chuck includes: preparing a first ceramic plate having a first hole formed therein; preparing a second ceramic plate having a second hole formed at a position different from a position of the first hole in a horizontal direction; forming a first slurry layer on the first ceramic plate or the second ceramic plate with a first slurry, the first slurry layer having a flow path formed therein to connect the first hole and the second hole; stacking the first ceramic plate and the second ceramic plate one above the other via the first slurry layer, and bonding the first ceramic plate and the second ceramic plate stacked one above the other via the first slurry layer.
BORON CARBIDE BASED MATERIALS AND PROCESS FOR THE FABRICATION THEREOF
Disclosed is a method for fabricating a solid article from a boron carbide powder comprising boron carbide particles that are coated with a titanium compound. Further disclosed herein are the unique advantages of the combined use of titanium and graphite additives in the form of water soluble species to improve intimacy of mixing in the green state. The carbon facilitates sintering, whose concentration is then attenuated in the process of forming very hard, finely dispersed TiB2 phases. The further recognition of the merits of a narrow particle size distribution B4C powder and the use of sintering soak temperatures at the threshold of close porosity which achieve post-HIPed microstructures with average grain sizes approaching the original median particle size. The combination of interdependent factors has led to B.sub.4C-based articles of higher hardness than previously reported.
METHOD FOR PRODUCING A CERAMIC COMPONENT
A method for producing a ceramic component from a composite material containing at least one hard material and plastic, to the component produced by said method and to the use of said component. Hie method includes the following steps: a) providing a green body comprising at least one hard material, which has been produced by means of a 3D printing method, b) impregnating the green body with at least one liquid resin system and c) curing the impregnated green body to form a synthetic resin matrix. The hard material is preferably SiC and/or B4C.
Boron carbide composite
The present disclosure relates to boron carbide (B.sub.4C) composite material and the method of making and using the boron carbide (B.sub.4C) composite.
FABRICATION OF HIGH HEAT CAPACITY CERAMIC MATRIX COMPOSITE AIRCRAFT BRAKES USING SPARK PLASMA SINTERING
A method of fabricating a brake component made from a ceramic matrix composite is disclosed. In various embodiments, the method includes infiltrating a carbon fabric with a slurry containing a ceramic powder and a sintering aid; laying up the carbon fabric in a desired geometry to form a raw component; warm pressing the raw component to form a green component; and sintering the green component via a spark plasma sintering process to form a sintered component.
POLYCRYSTALLINE DIAMOND ELEMENTS AND SYSTEMS AND METHODS FOR FABRICATING THE SAME
Polycrystalline diamond may include a working surface and a peripheral surface extending around an outer periphery of the working surface. The polycrystalline diamond includes a first volume including an interstitial material and a second volume having a leached region that includes boron and titanium. A method of fabricating a polycrystalline diamond element may include positioning a first volume of diamond particles adjacent to a substrate, the first volume of diamond particles including a material that includes a group 13 element, and positioning a second volume of diamond particles adjacent to the first volume of diamond particles such that the first volume of diamond particles is disposed between the second volume of diamond particles and the substrate, the second volume of diamond particles having a lower concentration of material including the group 13 element than the first volume of diamond particles.