High-purity microcrystalline micro-powder - casting performance with high purity

High-purity microcrystalline micro-powder, with its excellent properties such as high mechanical strength, great hardness, high temperature resistance and corrosion resistance, has been widely applied in fields like machinery, electronics, integrated circuits and medicine.

01 Precision components of semiconductor equipment

For instance, in semiconductor etching equipment, high-purity Al₂O₃ coatings or Al₂O₃ ceramics are mainly used as protective materials for the etching chamber and its internal components. In addition to the cavity, high-purity microcrystalline micro-powder is also required for the gas nozzles, gas distribution discs and mounting rings for fixing wafers in plasma equipment. For instance, in the wafer polishing process, high-purity microcrystalline micro-powder can be widely applied in polishing plates, polishing grinding pads, correction platforms, vacuum suction cups, etc.

02 Mechanical aspect

High-purity microcrystalline micro-powder has excellent mechanical properties and can be used as grinding wheels, ceramic nails, etc. Among them, the most widely used are high-purity alumina ceramic cutting tools and high-purity alumina ceramic balls.

03 Electronics and power

High-purity microcrystalline micro-powder has low high-frequency dielectric loss and excellent insulation performance, and can be used to prepare insulating devices, ceramic substrates and transparent alumina ceramics, etc. Among them, ceramic substrates and transparent alumina ceramics are widely used, and they are increasingly applied in many special optical instruments, lighting equipment and space satellite equipment, etc.

LED alumina ceramic circuit board

In terms of ceramic substrates, alumina ceramic substrates are the most widely used substrate materials in the contemporary electronic information industry and are the basic materials for integrated circuit chips. For instance, in the field of LED lighting, the thermal expansion coefficient of mainstream substrates is 14 to 17×10-6/ K. Under conditions of excessive temperature differences or sudden temperature changes, PCBS will expand more intensely than chip packaging, leading to desoldering issues. Under such troubles, the coefficient of thermal expansion of the alumina ceramic substrate is closer to that of the chip, which can effectively avoid similar situations.

Compared with glass, transparent alumina ceramics have higher strength, hardness and toughness, and their excellent surface wear resistance is also unmatched by glass. Compared with single crystal materials, the preparation temperature is lower and the production cycle is shorter, which makes it widely applied in fields such as optics, the preparation of special instruments, lighting, electronic technology, high-temperature technology, national defense and military, as well as aerospace. For instance, by taking advantage of the light transmittance, corrosion resistance and high-temperature stability of high-purity microcrystalline micro-powder, it can be fabricated into light-emitting arc tubes for application in high-pressure sodium lamps.

04 Medical Field

Biomedical materials can repair human body functions without causing adverse effects on the human body. Medical and health organizations have very strict requirements for biomedical materials. Not only are the materials required to be biocompatible, but they also need to possess characteristics such as being non-toxic, environmentally friendly and durable. High-purity microcrystalline micro-powder, due to its excellent biocompatibility, mechanical properties and chemical stability, will not cause rejection reactions when implanted in the human body. It can be widely used in the preparation of artificial bones, bolts and artificial joints, etc., and has been recognized in clinical practice and scientific research.