C04B41/0081

HIGH-TEMPERATURE ROLLING PROCESSING METHOD AND PROCESSING DEVICE, AND APPLICATION OF HIGH-TEMPERATURE ROLLING PROCESSING DEVICE
20240368043 · 2024-11-07 ·

A high-temperature rolling machining method and processing device, and an application of the high-temperature rolling processing device, the device includes a force loading assembly, a rolling assembly, a temperature control assembly, and a carrying assembly; in the high-temperature rolling machining method, an accurate high-temperature rolling operation can be carried out on the surface of a test piece made of brittle materials such as ceramics by using the processing device, and the mechanical properties and electrical properties of the test piece after rolling treatment are remarkably improved, the thermal conductivity is remarkably reduced, and at the same time, crack initiation in the processing process is avoided.

Multilayer zirconia ceramic block with uniform transition and method for preparing the same

The present disclosure belongs to the field of biological materials, and particularly relates to a multilayer zirconia ceramic with uniform transition and a method for preparing the same. The specific technical solution of the present disclosure is as follows: a zirconia ceramic with a formula comprising, in percentage by mass, 0-3% of lanthana, 1.5-16% of yttria, 0-2.5% of silicon carbide nano-whiskers, and 0-1.5% of a coloring agent, the balance being zirconia. Correspondingly provided are a multi-layer zirconia ceramic with uniform transition prepared using the formula and a method for preparing the same. By using the method of the present disclosure, multilayer zirconia ceramics with good and uniformly transitioning core properties can be quickly and conveniently prepared, meeting the requirements of patients with dental disorders on the use and esthetics of dentures.

Method to produce dense ceramic matrix composites
12195404 · 2025-01-14 · ·

Disclosed is a method for making a ceramic matrix composite. The method includes infiltrating an initial ceramic matrix composite with a molten silicon infiltration material to form a silicon infiltrated composite; cooling the silicon infiltrated composite; heating a first portion of the cooled silicon infiltrated composite to a temperature in excess of the melt temperature of the silicon infiltration material in the presence of a carbon source; heating a second portion of the cooled silicon infiltrated composite to a temperature in excess of the melt temperature of the silicon infiltration material in the presence of a carbon source after heating the first portion; and cooling the heated portions to form a final ceramic matrix composite, wherein the first portion and second portion of the cooled silicon infiltrated composite are adjacent or overlap.

Sapphire component with residual compressive stress
09623628 · 2017-04-18 · ·

A method comprises shaping an aluminum oxide ceramic material into a component for an electronic device. The component has first and second major surfaces. A selected region of one or both of the first and second major surfaces is heated to an annealing temperature. The selected region is then cooled below the annealing temperature, so that residual compressive stress is generated in the selected region.

TUNGSTATE- AND MOLYBDATE-BASED CERAMIC COATING FOR PROTECTION OF METAL SURFACES, PREPARATION PROCEDURE AND USE THEREOF

The present invention relates to different inorganic ceramic coatings whose chemical compositions comprise silicates, acids, metallic oxysalts such as tungstates and molybdates, water, and non-metallic oxides such as silicon oxide. Said water-based inorganic ceramic coatings improve the ceramic, anti-corrosive and resistance properties of the metal substrates that are coated with same. Likewise, the present invention relates to a sol-gel process for synthesizing said coatings in which the non-metallic oxide, before being mixed with the rest of the components of the chemical compositions as claimed, can be pre-treated with hydrochloric acid and ammonium hydroxide, or can be sonicated to achieve a particle size in the range from approximately 160 to approximately 180 nm. Finally, the present invention also relates to a method for coating the metal parts with the inorganic ceramic coatings as claimed in the present invention.

EUTECTIC METAL ALLOY-CONTAINING CEMENT AND METHODS OF USE THEREOF

A method for remediating fractures in a cement structure including heating the cement structure to a temperature at or above the melting temperature of the eutectic metal alloy particles to allow the particles to flow in liquid state into the fractures in the cement structure until the heat source is discontinued, allowing the particles to cool and solidify.

TUNGSTATE- AND MOLYBDATE-BASED CERAMIC COATING FOR PROTECTION OF METAL SURFACES, PREPARATION PROCEDURE AND USE THEREOF

The present invention relates to different inorganic ceramic coatings whose chemical compositions comprise silicates, acids, metallic oxysalts such as tungstates and molybdates, water, and non-metallic oxides such as silicon oxide. Said water-based inorganic ceramic coatings improve the ceramic, anti-corrosive and resistance properties of the metal substrates that are coated with same. Likewise, the present invention relates to a sol-gel process for synthesizing said coatings in which the non-metallic oxide, before being mixed with the rest of the components of the chemical compositions as claimed, can be pre-treated with hydrochloric acid and ammonium hydroxide, or can be sonicated to achieve a particle size in the range from approximately 160 to approximately 180 nm. Finally, the present invention also relates to a method for coating the metal parts with the inorganic ceramic coatings as claimed in the present invention.

METHOD FOR CLOSING AN ORIFICE OF A SILICON CARBIDE-BASED CONTAINER

A method for closing an orifice of a container. The method involves first providing a silicon carbide-based container comprising a cavity that is open by an orifice, of a silicon carbide-based plug and of a brazing material borne by the plug and/or the container. A solid object is housed in the cavity. Then the orifice is closed by brazing the plug onto the container. The brazing involves the melting the brazing material followed by solidification of the brazing material so as to form a solid joint between the container and the plug. At least a part of the cavity, referred to as a cold part, in which the solid object is housed, is kept at a temperature lower than the degradation temperature of the solid object during the brazing.

SLATE HOT BENDING FURNACE AND METHOD FOR PERFORMING HOT BENDING TREATMENT ON SLATE
20250178975 · 2025-06-05 ·

A slate hot bending furnace comprises: a furnace cover configured in the form of a hot insulation plate, and provided with a gas channel in communication with a furnace chamber; a blowing assembly, which is arranged outside a furnace body and is in communication with the gas channel of the furnace cover so as to provide an air flow into the furnace chamber; and heating devices. The heating devices include a first heating device which is fixedly arranged on an inner wall of the furnace body so as to adjust the ambient temperature of the furnace chamber, and a second heating device which moves in a vertical direction and/or a horizontal direction of the furnace body so as to adjust the local heating temperature of position to be subjected to hot bending treatment of slate.

Systems and methods for plasma spray fabrication of textured ceramics

Devices, systems and methods are provided to fabricate ceramic templates adapted for the production of textured ceramics. Embodiments may include a lidded canister loaded with ceramic particles, pressurized inert gas adapted to force the ceramic particles through the canister, a rotatable plate at an end of the canister, a particle tube connecting the end of the canister to a plasma torch, and a plasma arc at an end of the plasma torch heated to a temperature for melting the ceramic particles. A ceramic plasma spray may be generated that is adapted to coat a substrate with a non-equilibrium film, resulting in a ceramic template adapted for the production of textured ceramics.