Name: ZTA1879 Zirconium dioxide-hardened aluminium oxide (ZTA) ceramic plates
Brand: Stanford Advanced Materials (SAM)
SKU: ZTA1879
Availability: InStock

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ZTA1879 Zirconium dioxide-hardened aluminium oxide (ZTA) ceramic plates

Catalogue Number	ZTA1879
Dimensions	1501506, 15015012 mm, or customized
Appearance	White smooth surface
Purity	99%
Shape	Plate, Sheet
Composition	Alumina, Zirconia

Stanford Advanced Materials supplies zirconium dioxide clay ceramic components. Pricing and service information is available on request. All sizes of ZTA ceramic plates are produced using a ground finish to ensure a consistent surface; dimensional tolerances meet specified requirements. Other custom forms of ZTA ceramic are available on request.

Related products: Zirconium dioxide, ZTA nanopowder, ZTA rod, ZTA seal rings, ZTA tube

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Description

Specification

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Description of ZTA Sheets/Plates

Zirconia Toughened Alumina Ceramics (ZTA composite ceramic) exhibits controlled whiteness, corrosion resistance and chemical stability. Aluminium oxide contributes to the measured hardness, while zirconium dioxide enhances fracture toughness. The combination of these materials produces a composite that meets prescribed strength and toughness values, thereby supporting a wide range of applications.

ZTA ceramics exhibit higher flexural strength and fracture toughness at ambient temperatures, which results in increased wear resistance. The ratio of aluminium oxide to zirconium dioxide can be adjusted to meet specific user requirements. Zirconium dioxide pre-stressed aluminium oxide ceramic outperforms 99% pure aluminium oxide ceramic in defined performance metrics and is more cost‑efficient than pure zirconium dioxide ceramic.

This renders ZTA ceramic a viable alternative when pure aluminium oxide ceramic is not suitable for a particular application, as it provides improved cost‑performance while maintaining the required mechanical properties.

zirconia sheet

Specification of ZTA Sheets/Plates

		Condition	Unit	ZTA Substrate
		Condition	Unit	ZTA
Material		-	-	Al2O3/ZrO2
Colour		-	-	White
Bulk density		-	g/cm3	4
Surface roughness Ra		-	µm	0.2
Reflectance		0.3-0.4 mmt	%	80
Reflectance		0.8-1.0 mmt	%	90
Mechanical	Flexural strength	3‑point method	MPa	700
	Elastic modulus	-	GPa	310
	Vickers hardness	-	GPa	15
	Fracture toughness	IF method	^MPa･m1/2	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 capacity	25°C	J/(kg･K)	720
Electrical	Dielectric constant	1MHz	-	10.2
	Dielectric loss factor	1MHz	^10-3	0.2
	Volume resistivity	25°C	Ω･cm	>1 014
	Breakdown strength	DC	kV/mm	>15

Properties of Al2O3, ZTA, and YTZ

Item	Unit	Alumina (Al2O3)				Zirconium dioxide (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
Flexural strength	MPa≥	300	350	400	400	172~450	900
Maximum operating temperature	°C	1500	1500	1500	1500	1400~1500	1500
Linear expansion coefficient	×10-6/°C	7.5	8.2	8.2	8.2
Dielectric constant	εr (20°C,1MHz)	9	9.2	9.2	9.2
Dielectric loss	tanδ×10-4,1MHz	3	2	2	2
Volume resistivity	Ω-cm (20°C)	1 013	1 014	1 014	1 014	1 013	1 014
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
Compressive strength	MPa≥	2 500	2 500	2 500	2 800	2 300~2 900	2 500
Flexural strength	MPa≥	200	350	350	350
Elastic modulus	GPa	300	350	350	350
Poisson's ratio		0.2	0.22	0.22	0.22
Thermal conductivity coefficient	W/m-K (20°C)	20	25	25	25

Applications for ZTA Sheets/Plates

1. Wear‑resistant linings: ZTA ceramic sheets and plates are employed as linings in industrial installations, such as chutes, hoppers and conveyor systems, to provide abrasion protection and to maintain specified operational performance.

2. Cutting and grinding tools: They are applied in the manufacture of cutting and grinding tools where measured hardness and wear resistance are required to maintain edge retention and to reduce tool degradation.

3. Heat shields and thermal insulators: They are utilised in high‑temperature environments, for example in furnaces, kilns and heat treatment installations, given their thermal stability and resistance to thermal shock.

4. Biomedical implants: They are used in applications such as dental implants and orthopaedic implants, in which biocompatibility, mechanical strength and controlled wear resistance are significant.

5. Electronic substrates: They are employed in the electronics industry as substrates for electronic components and circuits, utilising their electrical insulation properties and ability to withstand high temperatures.

6. Aerospace and defence: They are used for protective armour components, structural parts and thermal barriers in aerospace and military applications, given that their strength-to-weight ratio meets defined criteria and they withstand extreme conditions.

7. Chemical processing equipment: They are utilised in chemical processing installations where resistance to corrosion, abrasion and high temperatures is required to ensure reliable operation over prolonged periods.

8. Ballistic armour: They are applied in ballistic armour for personal protection and in vehicle armour, offering measured impact resistance and durability against ballistic threats.

9. Precision mechanical components: They are employed in precision mechanics, for example in jigs, fixtures and assembly tools, where high dimensional accuracy and wear resistance are required.

10. Renewable energy: They are used in renewable energy applications, such as wind turbines and solar panels, where durable and weather‑resistant materials are necessary to ensure long‑term performance.

11. Mining and mineral processing: In mining and mineral processing installations these materials are used for components that must withstand severe and abrasive conditions, such as in mills and crushers.

12. Food and beverage industry: They are utilised in components for equipment in the food and beverage sector that must be chemically resistant, wear‑resistant and easy to clean to comply with hygiene standards.

Packaging of ZTA Sheets/Plates

Our ZTA sheets/plates are clearly marked and labelled on the exterior to enable identification and quality control. The products are wrapped in foam to protect against impacts and subsequently packaged in wooden crates. Strict measures are implemented to prevent damage during storage or transport.

packing-disc

Specification

		Condition	Unit	ZTA Substrate
		Condition	Unit	ZTA
Material		-	-	Al2O3/ZrO2
Color		-	-	White
Bulk Density		-	g/cm³	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/(kg･K)	720
Electrical	Dielectric Constant	1MHz	-	10.2
	Dielectric Loss Factor	1MHz	10^-3	0.2
	Volume Resistivity	25°C	Ω･cm	>1014
	Breakdown Strength	DC	kV/mm	>15