Methods are disclosed for making articles (2) by three-dimensional printing. The methods include three-dimensional printing a build powder mixture which includes a first material powder and a second material powder to form a printed article and subsequently heating the printed article to a temperature at which a sufficient amount of the second material powder melts to enable it to infiltrate throughout the interstices between the first material powder particles so that the article (2) achieves a room temperature relative density of at least 85 percent of its theoretical density, the theoretical density being the density the article (2) would have if it contained no porosity. The first material powder has a melting temperature, melting temperature range, or dissociation temperature which is higher than the melting temperature or melting temperature range of the second material powder and the first material powder has no more than a limited amount of solubility in the second material powder.

The improved mold assembly for cultured marble molding is provided. The mold assembly can comprise a male mold portion and a female mold portion. The assembly can further comprise a molding tool. The molding tool can have a side wall having an upper curved s and a lower curved portion. The molding tool can be constructed from a flexible and/or soft material. The lower curved portion of the molding tool can be coated with a gel coat having a first color. The molding tool can facilitate molding of a countertop having a recessed bowl portion having a color different from a counter portion of the countertop.

A mold for a wire grid polarizer includes a hard mold and a soft mold, in which the hard mold includes a main body, an oxidization layer provided on the main body, and a SAM layer provided on the oxidization layer and including an additive, the soft mold includes a substrate, and a protrusions and depressions portion including a polymerized releasing agent, and a region that is hydrophobic in the polymerized releasing agent is arranged on a surface of the protrusions and depressions portion.

Disclosed in this application are embodiments related to artificial coral articles, preparation methods thereof, and methods for introducing the artificial coral articles to coral reef polyps and fragments. Also disclosed in this application are embodiments related to compositions used for preparation of the artificial coral articles and methods for screening the compositions.

An integral dual module geopolymer building block includes an inner foam module for insulation and an outer dense tile surface on an outer side of the inner foam module for weather protection. The outer porous module comprises a geopolymer paste including sodium silicate and sodium hydroxide flakes dissolved in the sodium silicate to form an activated solution and adding calcined kaolin clay to the activated solution to form a geopolymer paste. A first relatively dense tile layer has a thickness of about 0.5 cm to 1.5 cm. A second geopolymer layer made from a second mass of paste mixed with hydrogen peroxide forms a geopolymer foam having a thickness of between 5 cm and 15 cm.

A high-temperature hot-pressing molding machine includes a mold unit, a heating, unit disposed to heat the mold unit, a heat insulating unit including a surrounding insulating member to enclose the mold unit and two insulating layers disposed on two opposite sides of the mold unit to obstruct heat radiation and conduction from the mold unit, a heat dissipating unit disposed on the insulating layers, a cooling unit disposed on the heat dissipating unit, and a vacuum unit disposed to form a vacuum space. Under a vacuum environment, with the heat insulating unit defining a heat zone containing the mold unit, other component parts adjacent to the heat zone can be prevented from damage in a high temperature operation.

A method of forming a vacuum insulated structure includes providing a multi-layer sheet of material comprising at least one layer of barrier material that is disposed between first and second outer layers. The barrier material and the first and second outer layers comprise thermoplastic polymers. The multi-layer sheet of material is thermoformed to form a non-planar first component. The first component is at least partially coated utilizing a plasma polymerization process or a physical vapor deposition process to improve the barrier properties of the first component. The method further includes securing a second component to the first component to form an interior space therebetween. Porous filler material is positioned in the interior space, and a vacuum is formed in the interior space.

Implant comprising composite powder with microstructured particles, obtained by a process in which large particles are bonded to small particles, wherein the large particles have a mean particle diameter in the range from 10 m to 10 mm, the large particles comprise at least one polymer, the small particles are arranged on the surface of the large particles and/or are non-homogeneously spread within the large particles, the small particles comprise a calcium salt, the small particles have a mean particle size in the range from 0.01 m to 1.0 mm,
wherein the particles of the composite powder have a mean particle size d50 in the range from 10 m to less than 200 m and the fine fraction of the composite powder is less than 50 vol %.

Therefore, the subject matter of the invention further are implants obtained by selective laser sintering of a composition comprising a composite powder, especially as an implant for applications in the field of neuro, oral, maxillary, facial, ear, nose and throat surgery as well as of hand, foot, thorax, costal and shoulder surgery.

A one-piece part based on magnetocaloric material comprising an alloy comprising iron and silicon and a lanthanide, comprises a base in a first plane defined by a first and second direction and N unitary blades secured to the base; the blades having a first and second dimension in the first and second direction, respectively, and a third dimension in a third direction at right angles to the first and second dimensions; an ith blade being separated from an (i+1)th blade by an ith distance; the ratio between the second dimension and first dimension being at least 10; the ratio between the third dimension and first dimension being at least 6; the first dimension being the same order of magnitude as the distance separating an ith blade from an (i+1)th blade. The magnetocaloric material can be rare-earth alloy or a composite material based on polymer binder and rare-earth alloy.

A method used for forming ceramic matrix composite components includes several steps. The method comprises arranging a layup of a predetermined number of prepreg ceramic plies on a layup too and a plurality of different stages to debulk and consolidate the layup.