96 Alumina (Al2O3) Substrates

Technical Strength

(1) Independent formula system

(2) Various molding processes ( casting, dry pressing, isostatic pressing and other ceramic molding technologies )

(3) Precision machining of dimensions

(4) Customized services

Powder Materials

Advantages

• Independent and controllable materials with stable quality
• Low impurity content and high powder purity
• Batch production of powders, more stable
• Performance parameters can be customized

Powder Material Properties Table

category	Test items	unit	75 porcelain	95 porcelain
Powder characteristics	Granulation powder particle size	μm	80~100	80~100
	Flow rate	s/50g	<80	<70
	Bulk density	g/cm 3	1.0~1.1	1.10~1.25
	Moisture content	wt%	0.1~0.5	0.1~0.5
	Loss on ignition rate	wt%	5.5~6.5	5.5~6.5
	Green body density	g/cm 3	2.0~2.2	February 20~230
	Shrinkage	%	15.0~16.0	15.0~16.0
Ceramic properties	Ceramic color	/	White	White
	Sintered density	g/cm 3	3.20~3.40	3.70~3.75
	Bending strength	MPa	230~280	350~400

 

Features

• High thermal shock resistance
• Low warpage
• High temperature resistance, good acid and alkali corrosion resistance
• Excellent processing performance

Application

• Thick film and thin film chip resistors
• Low power LED
• Gaskets for energy storage, charging piles, etc.

96 Alumina Material Properties Table

Project		Test conditions	Unit	Al 2 O 3
				A1296	A1296A	A2296	A996
Material		–	–	96%	96%	96%	100%
Appearance		–	–	White dense	White dense	White dense	White dense
Surface Roughness		Ra	μm	0.2-0.6	0.2-0.6	0.2-0.6	0.2-0.6
Density		–	g/cm 3	≥3.70	≥3.60	≥3.75	≥3.8
Physical properties	Bending strength	3 -point bending resistance	MPa	≥380	≥350	≥400	≥450
	Vickers hardness	Load 4.9	GPa	≥14	≥13	≥14	≥14
	Water absorption	–	%	0			0
Thermal performance	Thermal conductivity	25℃	W/(m·K)	≥22	≥19	≥24	≥27
	Linear thermal expansion coefficient	25℃-500℃	x10 -6 /℃	6.6~7.5			6.6~7.5
	Thermal shock resistance	800℃	time	≥10			≥10
	Specific heat	–	J/ ( kg·K )	880			780
Electrical properties	Dielectric constant	1MHz/25℃	–	9~10			9~10
	Dielectric loss	1MHz/25℃	x10 -4	≤3			≤0.5
	Volume resistivity	25℃	Ω·cm	> 10 14			> 10 14
	Breakdown voltage	–	kV/mm	> 12			> 15
Light performance	Reflectivity	Reflectivity meter	–	> 92%	> 95%	> 88%	> 90%
	Whiteness	Whiteness meter	–	> 88	> 86	> 88	–

 

Standard size:

Size(mm) Thickness(mm)	0.38	0.5	0.6	0.635	0.65	0.75	1.0	1.2	1.5	2.0
84*84	√	√	√	√	√	√	√	√	√	√
109*109	√	√	√	√	√	√	√	√	√	√
120*120	√	√	√	√	√	√	√	√	√	√
127*127	√	√	√	√	√	√	√	√	√	√
132*142		√	√	√	√	√	√	√	√	√
136*151		√	√	√	√	√	√	√	√	√
137*157		√	√	√	√	√	√	√	√	√
138*190		√	√	√	√	√	√	√	√	√
130*200		√	√	√	√	√	√	√	√	√