Ceramic Saggers

Tech Ceramic manufactures a vast range of saggars in a variety of differing formulations, specifically developed to suit individual customer applications. All formulations possess excellent thermal shock resistance and long life time.

Our saggars can be used in a wide range of applications and industries, our engineer’s suggestions are available to help you to achieve your requiremens and save your costs at the maintime.

Saggers By Applications

Saggers For Ceramic Decoration Parts

Nowadays zirconia ceramic has found more and more applications in the mobile phone industries, such as backing plate, wearing appearances.

TechCeramic offers high alumina saggers for sintering of zirconia parts at high temperature, featured with good high temperature resistance, good thermal shock resistance, small thermal expansion coefficient and excellent creep resistance.

  Alu 88 Alu 90
Al2O3 % 88 90
SiO2 % 11.5 9.5
Fe2O3 % 0.08 0.06
Bulk Density g/cm3 2.98 3.0
Porosity % 15 14
Working Temperature ℃ 1650 1650
Flexural Strength 1400℃ MPa 13.5 16.5
CTE 1000℃ 10-6/K 5.6 6.0

Saggers For 5N Alumina & Indium Oxide Powders

This high porosity saggers is specially designed for calcining 5N aluminum oxide powder and Indium oxide powders, manufacturing with high purity of aluminum oxide (99.9%) and low sodium corundum, sintering at 1800℃ to stabilized. During the low temperature calcination of powders, the pores help to remove the organic compounds.

Al2O3 % 89.4
SiO2 % 10.5
Fe2O3 % 0.06
NaO+KaO % <0.15
Bulk Density g/cm3 2.95
Porosity % 23
Working Temperature ℃ 1650
CTE 1000℃ 10-6/K 5.6

Saggers For Anode Materials Of Lithium Batteries

Cathode materials are mainly ternary lithium (LiNiCOMnO2), lithium iron phosphate (LiFePO4), lithium cobalt oxide (LiCoO2), lithium manganate (LiMnO2), of which ternary lithium are mainly NCM523, NCM622 and NCM811, corrosivity is gradually increased, PH value from 11-13, the calcination temperature is between 800-900 ° C, while the LiCoO2 temperature is higher and more corrosive. To make our saggers resist the corrosion of cathode materials, TechCeramic use sintering powder which contains trace lithium, forming a dense protective layer containing lithium on the surface of saggars, which can prevent the strong alkaline corrosion and improve the service life.

RSiC saggers are also available, featured with high strength, high temperature resistance, good impact resistance, oxidation resistance, corrosion resistance, low thermal expansion coefficient, high thermal conductivity.

Al2O3 % 58.1  
SiC % - 99
SiO2 % 20.1  
MgO % 19.1  
Bulk Density g/cm3 2.15 2.5
Porosity % 26 13
Working Temperature ℃ 1200 1600
at 1000°C
Flexural Strength MPa 15.6 100

Saggers For Electronic Magnetic Materials

Here magnetic materials are including ferrite, piezoresistor, thermistor and other electronic parts. Zirconia coating is sprayed on the inside body of saggers per request.

Saggers made from yttria or calcia stabilized zirconia is also used to sinter magnetic materials, our zirconia saggers has long service life and stable quality. There is no chemical reaction or adhesion with the components, which can ensure the stability and consistency of the properties of the electronic products and improve the qualification rate of the products.

Al2O3 % 88 <0.2% <0.2%
ZrO2 % - +Y2O3>99% +CaO>99%
SiO2 % 11.5 <0.15% <0.15%
Fe2O3 % 0.08 <0.15% <0.15%
Bulk Density g/cm3 2.98 4.3 4.3
Porosity % 15 23 23
Working Temperature ℃ 1600 1500 1500
Flexural Strength 1400℃ MPa 13.5 10 10
300μm Coating



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