Since ancient times, humans have preferred light and feared darkness, dreaming of controlling light at will, and now we have developed many practical luminous materials. In these luminescent materials, rare earth elements​ play a big role, far more than other elements. Due to the unique electron layer structure of rare earth elements, rare earth compounds show many excellent optical, electric and magnetic functions Read More »

Silicon carbide (SiC) has a broad application prospect in semiconductor, nuclear energy, national defense and space technology due to its good wear resistance, high temperature mechanical properties, oxidation resistance and other properties. With the development of society and the progress of science and technology, electronic equipment and instruments tend to be more and more precise, miniaturization and high performance, and put forward new requirements for heat conduction and heat dissipation. Read More »

Magnesium oxide was born in 1930s as a new material. In the early days of the founding of the People's Republic of China, due to the increasing demand of rubber products for magnesium oxide, a number of small workshop factories first emerged in Shanghai, but the production variety is relatively single. Until 1956 have developed light magnesium oxide and heavy magnesium oxide two specifications of varieties. Read More »

Alumina ceramic​ is a kind of a-al2o3 based crystal structure ceramic material, because of its own high melting point, high hardness, heat resistance, corrosion resistance, electrical insulation characteristics, so it can be used in more demanding conditions. Alumina ceramics, with low price and mature production process, is one of the largest and most widely used ceramic materials, mainly used in the field of cutting tools, wear-resistant parts and bioceramics. Read More »

Tellurium ingot, granule, lumps, powder Bismuth ingot, granule, lumps Zinc ingot, granule, bar, lumps Cadmium ingot, granule, bar, lumps Selenium ingot, lumps, granule, powder Sulfur powder, granule Antimony lumps, ingot, granule, bar Indium ingot, granule Germanium ingot, powder, lumps Gallium lumps, liquid Read More »

In everyone's impression, ceramics is fragile, but after modern technology processing, ceramics "suddenly changed", has become a hard, high strength new material, since the 21st century, bullet-proof ceramics developed rapidly, there are many kinds, including alumina, silicon carbide​, boron carbide, silicon nitride, titanium boride, etc. Among them, alumina ceramics (Al2O3), silicon carbide ceramics (SiC), boron carbide ceramics (B4C) are widely used. Read More »

Stone paperrefers to a new material between paper and plastic, with large reserves and wide distribution of limestone mineral resources as the main raw material (calcium carbonate​ content of 70-80%), with polymer polymer as the auxiliary material (content of 20-30%), using the principle of polymer interface chemistry and characteristics of polymer modification, Made type polymer extrusion, blowing process Read More »

Silicon nitride​ (Si3N4) thin films are widely used as dielectric materials. As amorphous insulating material, dielectric properties of silicon nitride film is better than that of silica membranes, have to the movable ions blocking ability strong, compact structure, small pinhole density, good chemical stability, high dielectric constant, etc. In the field of integrated circuit manufacturing is widely used for surface passivation coating, insulation, impurity diffusion etching mask mask, as well as the surface of the semiconductor encapsulation and so on. Read More »

Metal 3D printing​ is a 3D printing technology that uses metal powder to directly print metal parts, also known as metal Powder sintering (SLM). In addition to good plasticity, 3D printed metal powders must also meet the requirements of small particle size, narrow particle size distribution, high sphericity, good fluidity and high bulk density. The metal powders used in most 3D printers include stainless steel, aluminum alloy, cobalt-chromium alloy, copper alloy, titanium alloy and nickel alloy. Read More »

In order to increase the wear resistance of the nib, the small particles of osmium and iridium​ raw ore in the free state of nature were welded on the nib in the early stage of foreign countries. But the limitation and output and quality, with the development of metallurgical technology, osmium, iridium and other precious metals to join other metals into metal particles, because the alloy contains iridium, so called "iridium grain". Read More »

The pressure machinability of metallic materials depends on two relatively independent factors of the material: the machinability related to stress state (SOS) and the machinability inherent in the material itself. The machinability of SOS depends on the geometrical relationship of the deformation zone, and the workpiece is in three-dimensional stress state in the deformation zone. Read More »

Titanium dioxide​ is mainly divided into three kinds: plate titanium, anatase titanium dioxide and rutile type titanium dioxide, rutile titanium dioxide, anatase titanium dioxide is two important types of titanium dioxide, currently in the market the two most widely used, but the nature of the two are very different. Read More »

At present, the consumption of graphite is shifting from traditional industry to strategic emerging industry. As a new functional material, expanded graphite has many excellent properties, such as low density, light weight, high and low temperature resistance, non-toxic, harmless, environmental protection and energy saving, etc. It is recognized as one of the products with the most use value and application prospect in carbon materials. Read More »

Quartz is one of the most common minerals in nature. It is the scientific name of a group of minerals composed of silica​ (SiO2). It is widely used in glass, architecture, precious jade and stone decoration and other traditional industries. Since the 1960s, computer, new materials, new energy and other emerging technologies have put forward higher requirements on the purity of quartz products, and the concept of high purity quartz was born. Read More »

It is one of the most important inorganic nonmetallic materials after metal materials and nonmetallic materials. It has the common advantages of metal materials and polymer materials, in the process of continuous modification, ceramic materials with its excellent performance in the field of materials unique, highly valued by people, in the future social development will play a very important role. Read More »