Our company, in cooperation with foreign partners from Southeast Asia, produces for own needs and for sale various components for heating units of high-temperature furnaces and growth stations for various purposes, as well as other products.
In particular, we take orders and, according to customer`s requirements, we supply the necessary sizes of ceramic lining elements  based on corundum(Al2O3) and zirconium dioxide(ZrO2), for high temperature furnaces.

Ceramics based on zirconium dioxide stabilized with yttrium (Y2O3) can withstand temperatures of more than 2200 °C. It`s resistant to acid and alkaline influence, and also has considerable strength. This ceramic is characterized by a unique ability to increase its mechanical strength under load due to the transformation strengthening mechanism and can work in vacuum,as well as in an oxidizing and a reducing atmospheres.

Different types of ceramic products.







Ceramics based on zirconium dioxide.

Mass fraction of the main componentZrO2+HfO2% Mass fraction of stabilizing additive % Mass fraction of impurities % Operating temperature in Kelvin degrees
Y2O3 Ca SiO2 Fe2O3
91,8 8 0 0,1 0,1 2473
87,8 – 91,8 8-12 0 0,1 0,1 2473
94,6 0 5,2 0,1 0,1 2473 – 2673

Physical and mechanical properties of corundum and zirconia ceramics.

Property Alumina Y-TZP
Chemical composition 100% Al2O3 ZrO2+(3-8)%mol Y2O3
Density g/cm 3 ≥ 3.97 > 6
Porosity, % < 0.1 < 0.1
Flexural strength, MPa 500 900-1200
Compressive Strength, MPa 4100 2000
Young’s modulus, hPa 380 210
Fracture toughness К MPa m-1 4 9-10
Thermal expansion coefficient, (293-323К) К-1 8 х 10-6 11 х 10-6
Thermal conductivity (298К), Wm К-1 30 2
Operating temperature (К) 1973-2023 2473-2673

The excellent physical and chemical properties of zirconia ceramics, as a refractory material, allow this product to be widely used in the mechanical engineering, electronics,, in the aerospace industry , etc.

We sincerely welcome new and old partners in our country and around the world.The company TechSapphire Ltd. is ready to offer mutually beneficial cooperation on additional segments of our products. All products are manufactured by uswith using modern technologiesand innovations with strict quality control! This allows us to supply world-class products to our customers.


Example of ceramic components for high-temperature furnace.


Example of ceramic hot zone assembly.

We suggest cooperation to all interested companies!