Zirconia Toughened Alumina (ZTA) Ceramic Tube

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ZTA1880 Zirconia Toughened Alumina (ZTA) Ceramic Tube

Catalog No.	ZTA1880
Appearance	White smooth surface
Purity	99.9%
Shape	Tube
Length	10~400 mm
Component	Alumina, Zirconia

Stanford Advanced Materials is a global supplier of Zirconia Toughened Alumina Ceramic parts with competitive price and excellent service. All sizes of ZTA ceramic Sheet/Plate are finished with fine grinding, regular appearance, and high dimensional accuracy. Other customized shapes of ZTA ceramic are on request.

Related products: Zirconia, ZTA Nano Powder, ZTA Rod, ZTA Seal Rings, ZTA Tube

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Description

Specification

Description of ZTA Tube

Zirconia Toughened Alumina Ceramics (ZTA composite ceramics) possess notable characteristics such as whiteness, corrosion resistance, and excellent chemical stability. Alumina provides high hardness, while zirconia contributes to good toughness. The combination of these materials forms a superior composite with high strength and toughness, enabling a wide range of applications.

ZTA ceramics exhibit higher flexural strength and fracture toughness at normal temperatures, resulting in outstanding wear resistance. The ratio of alumina to zirconia can be adjusted to meet specific user requirements. Zirconia toughened alumina ceramics outperform 99% alumina ceramics in terms of performance while being more cost-effective compared to pure zirconia ceramics.

This makes ZTA ceramics an excellent choice when alumina ceramics are not suitable for a given application, offering improved cost performance and maintaining desirable mechanical properties.

zirconia tube

Specification of ZTA Tube

		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

Performance of Al2O3, ZTA, and YTZ

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

Applications of ZTA Tube

In mechanical engineering, ZTA tubes are used for high-wear components like pump seals, bearings, and shafts, as well as in thermal and electrical insulating applications due to their high dielectric strength and thermal stability.

Chemical processing industries utilize ZTA for corrosion-resistant linings in reactors and as seals and gaskets in harsh chemical environments, benefiting from their inertness and durability.

In medical and biotechnology fields, ZTA tubes serve as laboratory equipment and implantable devices for their biocompatibility and strength, while in the electronics sector, they act as high-temperature insulators and semiconductor manufacturing components.

Within the energy sector, ZTA provides thermal barrier properties in gas turbines and heat exchangers, withstanding high temperatures and thermal cycling.

Aerospace and automotive applications rely on ZTA for engine components needing high mechanical strength, thermal stability, and wear resistance. Even in environmental and analytical instruments, ZTA tubes are used in gas analysis and environmental monitoring instruments for their stability and resistance to harsh gases.

Packaging of ZTA Tube

Our ZTA Tube is clearly tagged and labeled externally to ensure efficient identification and quality control. The products are separated by foam for shockproof purposes and finally packed in wooden or carton boxes. Great care is taken to avoid any damage which might be caused during storage or transportation.

packing-disc

Frequently Asked Questions (FAQ)

Can ZTA Tubes be customized for specific applications?

Yes, ZTA Tubes can be customized in terms of composition, microstructure, dimensions, tolerances, surface finish, and other properties to meet the specific requirements of different applications.

Are ZTA Tubes suitable for high-temperature applications?

Yes, ZTA Tubes exhibit excellent thermal stability and can withstand high temperatures, making them suitable for use in environments with elevated operating temperatures such as furnaces, kilns, and reactors.

How do you handle and install ZTA Tubes?

ZTA Tubes should be handled with care to prevent damage, particularly during transportation, storage, and installation. Proper cleaning and inspection procedures should be followed to ensure optimal performance.

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