MgO Stabilized Zirconia Ceramic Bushing Insulator for Industrial Pump and Valve

Magnesia-stabilized zirconia (MSZ) is a high-performance engineering ceramic produced by adding magnesium oxide (MgO) to zirconium dioxide (ZrO₂) as a stabilizing agent-6. The MgO stabilizer controls the transformation of zirconia from its tetragonal to monoclinic phase, dramatically improving mechanical durability and resistance to thermal cycling-6. This stabilization mechanism makes MSZ a strategic material for applications requiring extreme thermal, mechanical, and chemical stability

﹡Technical Specifications

Compressive Strength： 1800–2000 MPa
Flexural Strength ：190–900 MPa (varies by grade)
Fracture Toughness (KIC)： 2.5–8 MPa·m½
Vickers Hardness：11–12 GPa (>1200 HV)
Density ：5.45–6.0 g/cm³

 

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﹡Conclusion

Magnesia-stabilized zirconia ceramics represent a versatile and high-performance engineering material family. Their unique combination of thermal stability, mechanical toughness, chemical resistance, and electrical insulation makes them indispensable for demanding industrial applications. The MgO stabilization system provides cost-effective performance advantages at elevated temperatures where other ceramic materials, including YSZ and alumina, may fail.

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﹡Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

﹡Certifications

﹡Company

Yixing Shengda Refractory Ceramic Co, Ltd. was established in Yixing City, China in 1995, witha production area of over 10,000m2. lt is an enterprise specializing in the production of aluminaceramic,zirconia ceramic,slicon nitride, silicon carbide and other precision ceramic products. 

And we also produce ceramic band heaters, ceramic terminal block, cordierite and mullite ceramic parts an other ceramic products.

﹡Ceramic Properties

Properties	Units	Cordierite Ceramic	Mullite Ceramic	95%Alumina Ceramic	99%Alumina Ceramic	99.5%Alumina Ceramic	99.7%Alumina Ceramic	Silicon Nitride	Zirconia Ceramic
Colour		Yellow	White	White	Light yellow	Light yellow	Light yellow	Black	White
Density	g/cm3	1.9	2.6	3.6	3.8	3.8	3.9	3.2	6
Flexural Strength	Mpa	30	120	300	350	375	375	800	1100
Compressive Strength	MPa	350	500	2500	2800	2800	2554	2600	3000
Modulus of Elasicity(20℃）	Gpa	40	100	300	350	350	357	290	320
Max Use Temperature	°C	1200	1300	1400	1500	1500	1760	1300	1050
Thermal Condutivity	W(m.K)	1.3-1.8	2~6	20	30	30	33-38	25	3
Thermal Expansion Cofficient	10-6/°C	2.5-3	2.5-3	7.5	8	8.2	8.2	3	10
Thermal Shock Resistance	△T℃	300	150	140	150	200	223	600	250
Dielectric Strength	KV/mm	-	-	15	18	18	23.4	14	15
Dielectric Constant	Er	8	8	9	9.2	9.2	9.84	9	26