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Welcome to Dongguan many hardware Ceramics Co., Ltd., a manufacturer specializing in zirconia ceramics.

Ceramic dispensing valve ceramic plunger ceramic suction disc sucker

Specializing in alumina ceramic and zirconia ceramics processing and customization

National service consultation telephone 132-8888-6353 (WeChat No. 1)
Contact us

Dongguan many many hardware Ceramics Co., Ltd.
Contact: Mr. Han
Mobile phone: 13288886353
Tel: 0769-82926445
QQ:304871063
Mailbox: Duoxuduo2006@163.com
Website: bjyjpf.cn
Address: No. 6 Chuang Road, Shang Sha first industrial area, Changan Town, Dongguan.

ZTA toughened ceramics
Your current location is: Website home page " Ceramic material " ZTA toughened ceramics

Although ceramic materials have many excellent properties, such as high temperature mechanical properties, chemical erosion resistance, electrical insulators, higher hardness and wear resistance, their structure determines that ceramic materials lack the energy of plastic deformation caused by slippage under stress state, and are prone to defects, cracks, and easily lead to high stress concentration. The essence of brittleness of ceramic materials.

Zirconia toughened alumina ceramics (ZTA) are white, corrosion-resistant and chemically stable. Alumina has high hardness and good toughness of zirconia. The two materials have formed an excellent composite with high strength and toughness. Zirconia toughened ceramics have excellent wear resistance at room temperature with higher flexural strength and fracture toughness. The specific proportion of the two materials can be adjusted according to the actual user requirements. Zirconia toughened alumina ceramics have better performance than 99 alumina ceramics, and the price is much lower than that of zirconia ceramics. It is widely used in machinery, electronics, petroleum, chemical industry, aerospace and textile industries.

Alumina zirconia structural ceramics performance parameter list -ZTA ceramics
 

performance

Company

Alumina AL2O3

Zirconia (ZrO2)

AL2O3 > 95

AL2O3 > 99

AL2O3 > 99.5

AL2O3 > 99.8

ZTA

YTZ

bulk density

G/cm3

Three point seven

3.80 to 3.85

Three point eight five

Three point nine

3.8 to 4.6

Six

hardness

HRA or more

Eighty-six

Eighty-eight

Eighty-eight

Eighty-eight

86~88

88~90

Bending strength

Mpa or more

Three hundred

Three hundred and fifty

Four hundred

Four hundred

172~450

Nine hundred

Maximum service temperature

Temperature

One thousand and five hundred

One thousand and five hundred

One thousand and five hundred

One thousand and five hundred

1400~1500

One thousand and five hundred

Coefficient of linear expansion

* 10-6/ C

Seven point five

Eight point two

Eight point two

Eight point two



Dielectric constant

R (20 C, 1MHz)

Nine

Nine point two

Nine point two

Nine point two



Dielectric loss

Tan delta x 10-4,1MHz

Three

Two

Two

Two



Volume resistivity

Omega cm (20 C)

One thousand and thirteen

One thousand and fourteen

One thousand and fourteen

One thousand and fourteen

One thousand and thirteen

One thousand and fourteen

Breakdown strength

KV/mm, DC or more.

Twenty

Twenty

Twenty

Twenty



Acid resistance

Mg/cm2 or less.

Zero point seven

Zero point seven

Zero point seven

Zero point seven



Alkali resistance

Mg/cm2 or less.

Zero point two

Zero point one

Zero point one

Zero point one



Wear resistance

G/cm2 or less.

Zero point two

Zero point one

Zero point one

Zero point one



compressive strength

Mpa or more

Two thousand and five hundred

Two thousand and five hundred

Two thousand and five hundred

Two thousand and eight hundred

2300~2900

Two thousand and five hundred

Flexural strength

Mpa or more

Two hundred

Three hundred and fifty

Three hundred and fifty

Three hundred and fifty



Modulus of elasticity

Gpa

Three hundred

Three hundred and fifty

Three hundred and fifty

Three hundred and fifty



Poisson's ratio


Zero point two

Zero point two two

Zero point two two

Zero point two two



Thermal conductivity

W/m. K (20 C)

Twenty

Twenty-five

Twenty-five

Twenty-five