ZTA1876 Zirconia Toughened Alumina (ZTA) Ceramic Disc

Catalog No.	ZTA187
Appearance	White smooth surface
Purity	99.9%
Shape	Disc
Component	Alumina, Zirconia
Max Working Temp. (℃)	1650 °C

SAM is a global supplier of Zirconia Toughened Alumina Ceramic parts with competitive prices and excellent service. All sizes of ZTA ceramic Discs are finished with fine grinding, regular appearance, and high dimensional accuracy. Other customized shapes of ZTA ceramic are on request.

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ZTA1876 Zirconia Toughened Alumina (ZTA) Ceramic Disc

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		Condition	Unit	ZTA Substrate
		Condition	Unit	ZTA
Material		-	-	Al₂O₃/ZrO₂
Color		-	-	White
Bulk Density		-	g/㎤	4
Surface Roughness Ra		-	µm	0.2
Reflectivity		0.3-0.4mmt	%	80
Reflectivity		0.8-1.0mmt	%	90
Mechanical	Bending Strength	3-point method	MPa	700
	Modulus of Elasticity	-	GPa	310
	Vickers Hardness	-	GPa	15
	Fracture Toughness	IF method	MPa･m^1/2	3.5
Thermal	Coefficient of Thermal Expansion	40-400°C	10^-6/K	7.1
	Coefficient of Thermal Expansion	40-800°C	10^-6/K	8
	Thermal Conductivity	25°C	W/(m･K)	27
	Thermal Conductivity	300°C	W/(m･K)	16
	Specific Heat	25°C	J/(㎏･K)	720
Electrical	Dielectric Constant	1MHz	-	10.2
	Dielectric Loss Factor	1MHz	10^-3	0.2
	Volume Resistivity	25°C	Ω･㎝	>10¹⁴
	Breakdown Strength	DC	㎸/㎜	>15

Item	Unit	Alumina(AL2O3)				Zirconia(ZrO2)
Item	Unit	AL2O3≥95	AL2O3≥99	AL2O3≥99.5	AL2O3≥99.8	ZTA	YTZ
Bulk Density	g/cm3	3.7	3.80~3.85	3.85	3.9	3.8~4.6	6
Hardness	HRA≥	86	88	88	88	86~88	88~90
Bending Strength	Mpa≥	300	350	400	400	172~450	900
Maximum Service Temperature	℃	1500	1500	1500	1500	1400~1500	1500
Linear Expansion Coefficient	×10-6/℃	7.5	8.2	8.2	8.2
Dielectric Constant	εr(20℃,1MHz)	9	9.2	9.2	9.2
Dielectric Loss	tanδ×10-4,1MHz	3	2	2	2
Volume Resistivity	Ω·cm(20℃)	1013	1014	1014	1014	1013	1014
Breakdown Strength	KV/mm, DC≥	20	20	20	20
Acid Resistance	mg/cm2≤	0.7	0.7	0.7	0.7
Alkali Resistance	mg/cm2≤	0.2	0.1	0.1	0.1
Wear Resistance	g/cm2≤	0.2	0.1	0.1	0.1
The Compressive Strength	Mpa≥	2500	2500	2500	2800	2300~2900	2500
Flexural Strength	Mpa≥	200	350	350	350
Modulus of Elasticity	Gpa	300	350	350	350
Poisson's Ratio		0.2	0.22	0.22	0.22
Coefficient of Thermal Conductivity	W/m·K(20℃)	20	25	25	25

		Condition	Unit	ZTA Substrate
		Condition	Unit	ZTA
Material		-	-	Al₂O₃/ZrO₂
Color		-	-	White
Bulk Density		-	g/㎤	4
Surface Roughness Ra		-	µm	0.2
Reflectivity		0.3-0.4mmt	%	80
Reflectivity		0.8-1.0mmt	%	90
Mechanical	Bending Strength	3-point method	MPa	700
	Modulus of Elasticity	-	GPa	310
	Vickers Hardness	-	GPa	15
	Fracture Toughness	IF method	MPa･m^1/2	3.5
Thermal	Coefficient of Thermal Expansion	40-400°C	10^-6/K	7.1
	Coefficient of Thermal Expansion	40-800°C	10^-6/K	8
	Thermal Conductivity	25°C	W/(m･K)	27
	Thermal Conductivity	300°C	W/(m･K)	16
	Specific Heat	25°C	J/(㎏･K)	720
Electrical	Dielectric Constant	1MHz	-	10.2
	Dielectric Loss Factor	1MHz	10^-3	0.2
	Volume Resistivity	25°C	Ω･㎝	>10¹⁴
	Breakdown Strength	DC	㎸/㎜	>15

ZTA1876 Zirconia Toughened Alumina (ZTA) Ceramic Disc

Description of ZTA Disc

Specification of ZTA Disc

Performance of Al2O3, ZTA, and YTZ

Applications of ZTA Disc

Packaging of ZTA Disc

Specification

Technical Data Sheet

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