Description of Aluminum Nitride Ceramics:

Aluminum nitride (AlN) ceramic is a new type of ceramic material with excellent comprehensive performance. It has a series of excellent characteristics, such as excellent thermal conductivity, reliable electrical insulation, low dielectric constant and dielectric loss, non-toxic, and thermal expansion system matching with silicon. It is an ideal material for a new generation of highly integrated semiconductor substrate and electronic device packaging; The decomposition temperature at room temperature can reach 2450 ℃, which can be used as crucible, evaporation boat, protection tube of thermocouple and high-temperature insulating part for smelting non-ferrous metals and semiconductor materials gallium arsenide; At the same time, it can be used as high-temperature corrosion resistant structural ceramics and transparent aluminum nitride ceramics.

Main features
(1) High thermal conductivity (up to 170W/m · K), close to BeO and SiC, more than 5 times that of Al2O3;
(2) Coefficient of thermal expansion (4.5 × 10-6/℃) and Si (3.5-4 × 10-6/℃) and GaAs (6 × 10-6/℃) matching;
(3) Various electrical properties (dielectric constant, dielectric loss, volume resistivity, dielectric strength) are excellent;
(4) Good mechanical properties, bending strength higher than Al2O3 and BeO ceramics, can be sintered under normal pressure;
(5) Good optical transmission characteristics;
(6) Good insulation and plasma etching resistance.

Application
(1) Aluminum nitride ceramic substrate, with high thermal conductivity, low expansion coefficient, high strength, high temperature resistance, chemical corrosion resistance, high resistivity and low dielectric loss, is an ideal heat dissipation substrate and packaging material for large-scale integrated circuits.
(2) Aluminum nitride is a new wear-resistant ceramic material with high hardness, which is superior to traditional aluminum oxide. It is used for parts with severe wear.
(3) Using the heat resistance, melt erosion resistance and thermal shock resistance of AIN ceramics, GaAs crystal crucibles, Al evaporating dishes, magnetohydrodynamic power generation devices and corrosion resistant parts of high-temperature turbines can be made, and their optical properties can be used as infrared windows. AlN thin films can be made into high-frequency piezoelectric components, VLSI substrates, etc.
(4) Aluminum nitride is heat-resistant, resistant to corrosion of molten metal, and stable to acid. When the new surface of AIN is exposed to humid air, it will react to form an extremely thin oxide film, which can be used as the crucible for smelting aluminum, copper, silver, lead and other metals, and as the sintering and casting die material.

Technical Parameter of Aluminum Nitride Ceramics:

Item	Unit	Property Index
		AN170	AN200	AN220
Color	–	Gray	Gray	Beige
Water Absorption	%	0	0	0
Volume Density	g/cm3	≥3.3	≥3.3	≥3.26
Surface Roughness	Um	0.1-0.6	0.1-0.6	0.1-0.6
Camber	Length‰	≤2	≤2	≤2
Thermal Conductivity(20℃)	W/m.k	≥170	≥200	≥220
Coefficient of thermal expansion	20℃~300℃(*10-6/℃)	4.6	4.6	4.5
	40℃~800℃(*10-6/℃)	5.2	5.2	5.2
Bending Strength	Mpa	≥450	≥300	≥200
Modulus Strength	Gpa	320	310	310
Moh’s hardness	–	8	8	8
Dielectric Strength	KV/mm	≥17	≥16	≥15
Volume Resistivity	Ω.cm	≥1014	≥1014	≥1013
Dielectric constant	–	9	8.6	8.5
Dielectric Loss	X10-4	2.98	2	2

 

Why choose us?

1.Abundant Experience. Rongsheng Group have over 20 years experience in the refractory industry and we have a deep understanding of the materials and applications we work with. We can provide expert advice and guidance to help customers find the best solutions for their needs.

2.Quality products. We pride ourselves on providing high-quality refractory products that are made to last. Our materials are carefully sourced and tested to ensure they meet our strict standards.

3.Competitive Price. We offer competitive pricie on all of our products without sacrificing quality and make the products competitive in your market.

4.Customization. We understand that every customer is unique, which is why we offer customized solutions tailored to their specific requirements. Whether it’s a custom shape or size, we can work with customers to create the ideal product for their application.

5.Safety. We take safety seriously and ensure that all of our products meet safety standards. Safty packing, prompt delivery time, and excellent after-sales services.

6.Large stocks. With a large stock of products on hand, we can better serve our customers, save money, and gain a competitive edge in their industry.

7. Overall solutions. We offer optimal and comprehensive solutions to supply the necessary refractory material for your high temperature kiln.

8.Long-term relationships. We believe in building long-term relationships with our customers based on trust and mutual benefit. We are committed to providing ongoing support and service to ensure customer satisfaction. Rongsheng Refractory can be used in many fields of steel, nonferrous metals, glass, cement, ceramic, petrochemical, machinery, boiler, light, and power industries. What’s more, Industrial distributors, refractory contractors, sales agents, trading companies, and refractory consultants can all benefit from promoting and selling our top-of-the-line refractory products. With a focus on durability, longevity, and performance, our products are designed to exceed your expectations and provide your customers with the best possible results.

So choosing us is the right choice for you.If you are interested in our products or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.