Керамическая втулка из оксида

Категория: Ceramics >>>
Поставщик: Xiamen,Unipretec,Ceramic,Technology,Co.,Ltd.

Цена:*

Количество:

Описание и отзывы

Трекер стоимости

Месяц	Минимальная цена	Макс. стоимость
Sep-16-2025	0.72 $*	0.18 $*
Aug-16-2025	0.93 $*	0.29 $*
Jul-16-2025	0.10 $*	0.9 $*
Jun-16-2025	0.48 $*	0.14 $*
May-16-2025	0.31 $*	0.50 $*
Apr-16-2025	0.80 $*	0.24 $*
Mar-16-2025	0.96 $*	0.47 $*
Feb-16-2025	0.79 $*	0.73 $*
Jan-16-2025	0.33 $*	0.46 $*

Характеристики

Material Introduction

Alumina, or Aluminum Oxide, is a durable fine industrial ceramic that is commonly used in a variety of processing applications. Grind sintered alumina ceramics only using a diamond tool. Alumina ceramic exhibits exceptional hardness and wear resistance, as well as low corrosion, excellent electrical insulation and bio-inertness. Alumina (Al2O3) is a very heat-stable ceramic material of excellent temperature stability. Al2O3 ceramics with a purity of 95% to 99% are the most commonly used kind of technical ceramics. UNIPRETEC offers a variety of alumina ceramic shaping methods, including molded injection, die pressing, slip casting, extrusion, and cold isostatistically pressing.

Alumina is used in a wide spectrum of purity concentrations, ranging from ultrapure to added-substance grades. Although the purity of Al2O3 in finished products usually ranges between 90 and 99.8%, UNIPRETEC tends to work with materials with a purity of 95 to 99 percent.

Product Features

√ High Voltage Insulator	√ High Purity, Max. 99.8%	√ Various Available Grades
√ Hard and Wear Resistant	√ High Corrosion Resistance	√ High Mechanical Strength
√ Good Thermal Conductivity	√ High Operating Temperature	√ Most Favorable Fine Ceramic

Applications

Material Properties

ITEM	UNIT	Alumina \| A950	Alumina \| A990
Main Content	-	95% Al2O3	99% Al2O3
Color	-	White / Pink	Ivory
Density	g/cm³	3.7	3.85
Vickers Hardness	Gpa	14	17
Flexural Strength	Mpa	310	360
Compressive Strength	Mpa	2,200	2,500
Electrical Resistivity	Ω·cm	>10¹⁴	>1014
Dielectric Strength	KV/mm	15	17
Dielectric Constant	1 MHz	8	9
Thermal Conductivity	W/m.K	25	29
Max. Working Temperature	℃ / °F	1,500 / 2,730	1,650 / 3,000
Resistance to Thermal Shock	△T(℃)	210	230
Thermal Expansion Coefficient (25 - 1,000 ℃)	10^-6/K	7 - 9	7 - 9

About Us

UNIPRETEC is a representative technical ceramic company in China. Relying on the technical team with more than 10 years of experience and the cooperation of well-known domestic colleges and institutions, our company covers the manufacturing and sales of oxide, nitride and carbide ceramic products. Based on the research in the advanced ceramic industry, our company is good at providing suitable products and suggestions flexibly according to customers' applications and needs. For many years, our company has focused on meeting the needs of customers from all over the world. Many praises from customers and partners have been encouraging UNIPRETEC to move forward and develop.

"Simple things into very complex, can find new areas; Read the complex phenomenon is very simple, can be found that the new law." - - - - - -Isaac Newton