#Siliconnitrideceramics

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Advanced Ceramics Is The Most Potential Development In New Materials Field

According to the preparation technology and application field of ceramics, ceramics can be divided into traditional ceramic materials and advanced ceramic materials. Advanced ceramics have gradually become an important part of new materials. Advanced ceramics: according to chemical composition can be divided into oxide ceramics, nitride ceramics, carbide ceramics, boride ceramics, silicide ceramics, fluoride ceramics, sulfide ceramics, and so on. According to its properties and uses, it can be divided into two categories: energy ceramics and structural ceramics. Functional ceramics are mainly based on the special functions of materials, with electrical properties, magnetic properties, biological properties, thermal sensitivity, optical properties, and other characteristics, mainly including insulating and dielectric ceramics, ferroelectric ceramics, piezoelectric ceramics, semiconductor, and sensitive ceramics, etc. Structural ceramics are mainly based on the mechanical and structural uses of materials, with high strength, high hardness, high-temperature resistance, corrosion resistance, oxidation resistance, and other characteristics.

Advanced Ceramics Is The Most Potential Development In New Materials Field Structural ceramics with their excellent mechanical and thermal properties become an important branch of ceramic materials, accounting for about 30% of the whole ceramic market. In nearly 20 years, the national major projects and cutting-edge technology in ceramic material and its preparation technology is also put forward higher demands and challenges, such as aerospace rocket liquid hydrogen in liquid oxygen turbine pump use of silicon nitride ceramic bearings under the condition of low-temperature extremes no-slip condition at high speed, requirements at the beginning of the ceramic bearing high strength, good, wear resistance, surface processing of high precision; The large size ceramic sealing ring used in the main pump of nuclear power plant needs long service life and high reliability. In particular, the silicon carbide ceramic reflector used in the ground monitoring of the earth satellite shooting targets, in addition to high elastic modulus, low thermal expansion coefficient, and lightweight, requires high precision ultra-mirror and large size. This is a challenge to the molding technology, sintering technology, and processing technology of large-size structure ceramic materials. In optical communication, the inner hole of the optical fiber connector is 125 microns, and it requires a very high surface finish, dimensional accuracy, and concentricity. So Structural ceramics is the most promising quality material in an extreme environment. For the oxide ceramics, nitride ceramics in structural ceramics, below is their feature: Alumina ceramics: the earliest and most widely used structural ceramics Zirconia ceramics: high-performance structural ceramics, toughening is the key to preparation Beryllium oxide ceramics: oxide ceramics with the highest thermal conductivity, Silicon nitride ceramics: one of the materials with the best comprehensive properties in advanced ceramics Aluminum nitride ceramics: ideal structural material for microelectronics industry circuit board and packaging Boron nitride ceramics: soft ceramics in ceramic materials, good machinability Read the full article

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Silicon Nitride Ceramic Substrate Market Report

Product Segment Analysis of the Silicon Nitride Ceramic Substrate Market is: Market Growth by Types: High Thermal Conductivity Substrate Regular Substrate Market Growth by Applications: Power Module Heat Sinks LED Wireless Modules Channel (Direct Sales, Distributor) Segmentation: Regions Covered in Silicon Nitride Ceramic Substrate Market are: North and South America Europe China South Korea India Silicon nitride substrates will be widely used in 2019 to 2024, especially in the semiconductor industry because of heat dissipation, reliability, and electrical properties. Read the full article

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Thermocouple Protection Sheaths

INNOVACERA manufacture a range of silicon nitride and advanced ceramic thermocouple protection sheaths for use in the aluminium and molten metal handling industries. They are an advanced ceramic tube offering outstanding performance for temperature control in aluminium foundries and smelters and are extremely cost effective compared to competitive materials, such as cast iron, silicon carbide and alumina. INNOVACERA silicon nitride possess a unique combination of physical properties, such as high strength, toughness, excellent thermal shock resistance and resistance to corrosion, which make it the stand out material in this application. Silicon nitride protection tubes are world renowned for their outstanding performance in contact with non-ferrous molten metals, particularly aluminium and its alloys and zinc. They allow constant temperature monitoring of the melt resulting in improved quality of the finished casting. In addition to its excellent physical properties, it is also non-wetting to most non-ferrous alloys, making it resistant to build up of dross and is therefore very low maintenance. For high temperature applications above 1200°C, silicon nitride ceramic protection tubes is the preferred choice. Read the full article

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Application of Silicon Nitride Ceramic

Silicon nitride is an important structural ceramic material. It is a super-hard substance that has lubricity and is resistant to wear. It has an atomic crystal structure and is resistant to oxidation at high temperatures. It is precise because of the excellent characteristics of silicon nitride ceramics that people often use to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, and hydraulic molds. Properties of silicon nitride: 1. Heat resistance 2. Thermal shock resistance 3. Self-lubricating 4. Corrosion resistance 5. Wear resistance Read the full article

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Properties and Characteristics of Hot Pressed Silicon Nitride Ceramic Electro thermal Components

Silicon nitride ceramic heating element is based on high-performance silicon nitride ceramics, high temperature and high mechanical strength, thermal shock resistance is strong, resistance to acid and alkali corrosion, both with excellent insulation performance and good thermal conductivity. With our company’s proprietary formula and hot pressing technology, the product has the following excellent properties and characteristics. Rated voltage: 220V. 230V. 110V 120VFrequency: 50/60HZRated power: 200W-650WMaximum power: 750W Features: Insulation electrical strength: 2500V, 50HZ, at room temperature, 1 minute without breakdown phenomenon; Resistance to High temperature: dry point up to 1000°C; High surface load, dry point heating load up to 25W/CM2; Small size; Small thermal inertia and warming faster; Long life; Acid-alkali corrosion resistance. Technical properties: Flexural strength(20°C) 900Mpa fracture Toughness(20°C) 6.08.0Mpa,m1/2 Density 3.20-3.4 g/cm3 Volume Resistivity(20°C) 1014Ω.cm Relative Dielectric Constant(20°C) 6-7 Thermal Conductivity 23-25W/(m-k) Coefficient of Thermal Expansion 3.1*10-6°/C Hardness HRA92-94 Applications Ceramic welding head Packing machinery Tobacco equipment Industrial beating equipment Automatic welding machine Mould heater Industrial heating equipment Petrochemical industry For all kinds of high-temperature ignition device Read the full article

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Silicon Nitride Ceramic Weld Location Pins

Ceramic materials have long replaced metal in the production of welding pins, which ensure a perfect fit for sheet metal and nuts in projection welding and are subject to temperatures of up to 800°C. Gas-pressure sintered silicon nitride ceramics from INNOVACERA are at a distinct advantage here: Extreme hardness and flexural strength High thermal shock resistance Electrical insulation Temperature resistance High tensile strength and compressive strength Fewer cold welds No welding spatter adhesion Ceramic welding pins made of silicon nitride significantly increase service life and enable high levels of precision and greater accuracy over extended periods in projection welding. Metal welding pins often need to be replaced several times a day due to wear and adhering slag, whereas centering pins made of silicon nitride ceramics only need to be replaced about once a month. Read the full article