Abstract:
A method for forming single element arc tubes is provided. The method includes the use of the lost foam process in combination with ceramic forming processes. First, a polymeric material (20) is formed to define the internal dimensions. The outer dimensions are established with an external mold (40), followed by filling the mold with a suspension (60) that hardens. The outer mold is removed and the part is debindered to melt and remove the inner foam shape, followed by sintering to form a substantially transparent ceramic arc tube (70).
Abstract:
A method of manufacturing a light emitting container capable of remarkably increasing the function of the light emitting container formed by baking a hollow ceramic molded body by accurately controlling the inner shape of the body part of the hollow ceramic molded body as the precursor of the light emitting container, comprising the steps of filling slurry for molding in a forming die by using a core for molding having a wax molded body or a molded body formed with wax−like substance, curing the slurry to form the hollow ceramic molded body having the inner shape of the body part controlled on the outer peripheral surface of the molded body or the molded body formed with the wax−like substance, and baking the hollow ceramic molded body.
Abstract:
Proppant particles formed from slurry droplets and methods of use are disclosed herein. The proppant particles can include a sintered ceramic material and can have a size of about 80 mesh to about 10 mesh and an average largest pore size of less than about 20 microns. The methods of use can include injecting a hydraulic fluid into a subterranean formation at a rate and pressure sufficient to open a fracture therein and injecting a fluid containing a proppant particle into the fracture, the proppant particle including a sintered ceramic material, a size of about 80 mesh to about 10 mesh, and an average largest pore size of less than about 20 microns.
Abstract:
The invention relates to a method for preparing ceramic grains comprising: - making a slurry comprising inorganic particles and a gelling agent; - making droplets of the slurry; - introducing the droplets in a liquid gelling-reaction medium wherein the droplets are gellified; - deforming the droplets before, during or after gellification; - drying the gellified deformed droplets, thereby obtaining dried grains and sintering the dried grains, thereby obtaining the ceramic grains. The invention further relates to ceramic grains obtainable by a method of the invention.
Abstract:
The invention relates to sintered ceramic grains comprising 3-55 wt. % alumina, 40-95 wt. % zirconia and 1-30 wt. % of one or more other inorganic components. The invention further relates to a method for preparing ceramic grains according to the invention, comprising: making a slurry comprising alumina, zirconia; making droplets of the slurry; introducing the droplets in a liquid gelling-reaction medium wherein the droplets are gellified; drying the gellified deformed droplets.
Abstract:
A ceramic precursor batch composition, green ware formed thereof, porous ceramic honeycomb article formed thereof, and methods of making same.
Abstract:
A method of forming a metal oxide composite, the method comprising mixing a metal oxide, at least two monomers and a dispersant to produce a slurry; gel casting the slurry to produce a green metal oxide composite; and sintering the green metal oxide composite to produce the metal oxide composite. A metal oxide composite formed according to the method. Use of the metal oxide composite, for catalysing hydrolysis of metal borohydride to produce hydrogen.