Ceramics and Others_ATTL Advanced Materials Co., Ltd.

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Ceramics powder and other products

Ceramics powder and other products:

We produce all kinds of ceramic powder, mainly AlN, TiC, TiCN, TiB2, BN, SiC, Si3N4, Sialon, Cr3C2, MoSi2, XTiY, etc. by self-propagating high temperature synthesis technology. More can also be produced based on customers’ demand. This technology gives products completed reaction, stable performance and good quality. Yield capacity: 30t/year

Standard and Application

Product	Component,wt%					Particle Size μm	Application
Product	N	C	C.free	E	O	Particle Size μm	Application
AlN	≥32.5	≤0.1		Fe≤0.1	≤1.0	≤0.5	Additives, high temperature structural ceramics and electronic circuit substrate, the evaporation boat, electronic packaging, thermal coated
TiN	≥21			Fe≤0.1	≤1.0	≤4.0	cutter, coating
TiC		≥19.5	≤0.3	Fe≤0.1	≤1.0	≤4.0	cutter,grinder
TiCN	C/N adjustable		≤0.3	Fe≤0.1	≤1.0	≤3.0	cutter,grinder
TiB2		B≥26		Fe≤0.1 Mg≤0.2 B2O3≤0.2	≤1.0	≤4.0	Ceramic cutting tool structure, conductive ceramics, abrasives, evaporation boat
h-BN(Ⅰ)	≥55	≤0.08		Fe≤0.005 Mg≤0.2 B2O3≤0.1	≤0.5	≤1.0	Cubic BN raw materials, high performance components, cosmetic additives
h-BN(Ⅱ)	≥53	≤0.2		Fe≤0.2 B2O3≤0.5	≤1.5	≤4.0	High temperature insulation, solid lubricant, coating agent, evaporation boat
β-SiC		≥28	≤0.3	Fe≤0.2	≤0.8	≤0.5	the structure of the evaporation boat knives, pottery and porcelain, abrasive
Si3N4	≥37.5	≤0.2		Fe≤0.2 Si,free≤0.7	≤1.5	≤0.5 ≤5.0	Cutting tools, structural ceramics, high temperature structure, wear-resisting material
β-Sialon	Z adjustable			≤0.5		≤3.0	Cutting tools, structural ceramics
MoSi2	Si≥21	≤0.1		Fe≤0.2 Si,free≤0.7	≤1.0	≤3.0	heating parts
Cr3C2		≥12.5	≤0.3	Fe≤0.2	≤1.0	≤3.0	Welding, spraying, wear-resisting material, cutting tool
XTiY	X,Y adjustable			Fe≤0.2		≤3.0	Welding, spraying, wear-resisting material, cutting tool
TiB2·Al2O3	TiB2·Al2O3 adjustable			Fe≤0.2		≤3.0	wear-resisting material, cutter

Production Process:

Aluminum Nitride Ceramic Products:

1．Property and Application:

Aluminum nitride ceramic is an ideal dissipation and packaging material for large-scale integrated circuits, semiconductor module circuit and high power device of new generation. It is the perfect additive to improve heat conductivity and mechanical ability of polymer materials.

Aluminum nitride ceramic can also be made for smelting non-ferrous metal and semiconductor gallium arsenide crucible, evaporation boat, thermocouple protection tube, high temperature insulation parts, microwave dielectric ceramic material, high-demand ceramic products.

2．Specification of Aluminum nitride powder:

Sample Name	N (wt%)	O (wt%)	Fe (wt%)	Cr (wt%)	Ni (wt%)	K (wt%)	Na (wt%)
AlN -12	>32.5	<1	<0.05	<0.005	<0.005	<0.005	<0.005
AlN -15	>32.5	<1	<0.05	<0.005	<0.005	<0.005	<0.005
AlN -20	>32.5	<1	<0.05	0	0	0	0

3．ALN substration:

With the good heat conductivity, insulation, heat corrosive and corrosion resistance, ALN is widely applied in power module, micro –electric package and temperature-protecting pipes and other fields.

Comparison between ALN substration and other ceramic substration:

property	AlN	SiC	Al2O3	BeO	BN
Thermal conductivity (W/mK) (at room temperature)	>150	270	20	250	20-60
Electrical resistivity(Ωm) (at room temperature)	>1012	>1012	>1012	>1012	>1012
Dielectric strength(105V/m) (at room temperature)	140-170	0.7	100	100-140	300-400
Dielectric constant(at room temperature 1MHz)	8.8	45	8.5	6.7	40
Tgδ(10-4)(at room temperature 1MHz)	5-10	500	3	4-7	2-6
Coefficient of expansion(10-6K-1)	4.5	3.7	7.3	7.2	0.0
Moduous of elasticity(GPa)	3.3	3.2	3.9	2.9	2.3
Bending strength(MPa)	392-490	441	196-294	167-225	980