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Transformation toughened zirconias such a Magnesia-Stabilized Zirconia have small precipitates of tetragonal phase which are formed inside of the cubic phase grains. These precipitates transform from the meta-stable tetragonal phase to the stable monoclinic phase when a crack attempts to propagate through the material. This causes the precipitate to expand and blunt the crack tip promoting toughness. MSZ can be either ivory or yellow-orange in color due to differences in preparation of the raw material. Ivory colored MSZ has a higher purity and offers slightly better mechanical properties. MSZ is more stable in high temperature (220C and above), high moisture environments than YTZP - where YTZP typically degrades. MSZ has a low thermal conductivity and CTE similar to cast iron to prevent thermal mismatch in ceramic to metal assemblies. Due to the transformation toughening, ATT’s partially stabilized MSZ provides excellent strength, toughness, wear, abrasion, and corrosion resistant materials to meet the severe service needs of many industries.
Magnesia stabilized zirconia exhibits superior resistance to thermal shock and erosion. It has low thermal expansion properties and excellent non-wetting characteristics. Zirconia (ZrO2) Crucibles are great refractory and insulating materials. They have a clean melt at temperatures above 1900°C and above and are specially manufactured for melting superalloys and precious metals. They also have excellent chemical inertness, superior thermal shock resistance to temperatures reaching up to 2200°C, and good corrosion resistance to acids and alkalis.
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Product Information
Transformation toughened zirconias such a Magnesia-Stabilized Zirconia have small precipitates of tetragonal phase which are formed inside of the cubic phase grains. These precipitates transform from the meta-stable tetragonal phase to the stable monoclinic phase when a crack attempts to propagate through the material. This causes the precipitate to expand and blunt the crack tip promoting toughness. MSZ can be either ivory or yellow-orange in color due to differences in preparation of the raw material. Ivory colored MSZ has a higher purity and offers slightly better mechanical properties. MSZ is more stable in high temperature (220C and above), high moisture environments than YTZP - where YTZP typically degrades. MSZ has a low thermal conductivity and CTE similar to cast iron to prevent thermal mismatch in ceramic to metal assemblies. Due to the transformation toughening, ATT’s partially stabilized MSZ provides excellent strength, toughness, wear, abrasion, and corrosion resistant materials to meet the severe service needs of many industries.
Magnesia stabilized zirconia exhibits superior resistance to thermal shock and erosion. It has low thermal expansion properties and excellent non-wetting characteristics. Zirconia (ZrO2) Crucibles are great refractory and insulating materials. They have a clean melt at temperatures above 1900°C and above and are specially manufactured for melting superalloys and precious metals. They also have excellent chemical inertness, superior thermal shock resistance to temperatures reaching up to 2200°C, and good corrosion resistance to acids and alkalis.
Synonyms
Zirconium(IV) oxide, stabilized with magnesia; MgO stabilized ZrO2; Magnesia partially stabilized zirconia; Yellow magnesia partially stabilized zirconia; MgPSZ; Mg-PSZ; zirconium magnesium oxide; magnesium zirconate; MSZ
Magnesia Stabilized Zirconia Crucible Specifications
Dimensions
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Property | ASTM Method | Units | Magnesia Stabilized Zirconia (MSZ) | |
| General | Crystal Size (Average) | Thin Section | Microns | 30 |
| Color | -- | -- | Ivory Or Yellow | |
| Gas Permeability | -- | Atms-Cc/Sec | Gas Tight <10-10 | |
| Water Absorption | C 20-97 | % | 0 | |
| Mechanical | Density | C 20-97 | G/Cc | 5.72 |
| Hardness | Vickers 500gm | GPa (Kg/Mm2) | 11.7 (1200) | |
| Hardness | -- | R45N | 78 | |
| Fracture Toughness | Notched Beam | MPam1/2 | 12 | |
| Flexural Strength (MOR) | F417-87 | MPa (Psi X 103 | 620 (90) | |
| (3 Point) @ RT | ||||
| Tensile Strength @ RT | -- | MPa (Psi X 103) | 310 (45) | |
| Compressive Strength @ RT | -- | MPa (Psi X 103) | 1862 (270) | |
| Elastic Modulus | C848 | GPa (Psi X 106) | 206 (29.8) | |
| Poisson's Ratio | C848 | -- | 0.28 | |
| Thermal | C.T.E. 25 - 100° C | C 372-96 | X 10-6/C | 8.9 |
| C.T.E. 25 - 300° C | C 372-96 | X 10-6/C | 9.7 | |
| C.T.E. 25 - 600° C | C 372-96 | X 10-6/C | 10 | |
| Thermal Conductivity @ RT | C 408 | W/M K | 3 | |
| Max Use Temp | -- | Fahrenheit (°F) | 2200 | |
| -- | Celsius (°C) | 1200 | ||
| Electrical | Dielectric Strength (.125" Thick) | D 149-97A | V/Mil | 300 |
| Dielectric Constant @ 1 MHz | D 150-98 | -- | 22.7 | |
| Dielectric Constant | D 150-98 | -- | 29.2 | |
| @ Gigahertz | D 150-98 | -- | 6.2 | |
| Dielectric Loss @ 1 MHz | D 150-98 | -- | 0.0016 | |
| Dielectric Loss | D 150-98 | -- | 0.0018 | |
| @ Gigahertz | D 150-98 | -- | 6.2 | |
| Volume Resistivity, 25°C | D 257 | Ohms-Cm | > 1 X 1013 | |
| Volume Resistivity, 300°C | D 1829 | Ohms-Cm | 5 X 107 | |
| Volume Resistivity, 500°C | D 1829 | Ohms-Cm | 1 X 107 | |
| Volume Resistivity, 700°C | D 1829 | Ohms-Cm | 2 X 106 |
| Composition | Content % |
| ZrO2 | 95.3 |
| MgO | 2.2 |
| CaO | 0.19 |
| Al2O3 | 0.71 |
| TiO2 | 0.2 |
| Fe2O3 | 0.2 |
| SiO2 | 1.2 |
| Property | ASTM Method | Units | MSZ (Magnesia Stabilized) | YTZP (Yttria Stabilized) | YTZP (Yttria Stabilized) | YTZP (Yttria Stabilized) | CSZ (Ceria Stabilized) | |
| General | Crystal Size (Average) | Thin Section | Microns | 30 | 1 | 1 | 1 | 3 |
| Color | -- | -- | Ivory Or Yellow | Ivory | Ivory | Ivory | Yellow | |
| Gas Permeability | -- | Atms-Cc/Sec | Gas Tight <10-10 | Gas Tight <10-10 | Gas Tight <10-10 | Gas Tight <10-10 | Gas Tight <10-10 | |
| Water Absorption | C 20-97 | % | 0 | 0 | 0 | 0 | ||
| Mechanical | Density | C 20-97 | G/Cc | 5.72 | 6.02 | 6.05 | 6.07 | 6.2 |
| Hardness | Vickers 500gm | GPa (Kg/Mm2) | 11.7 (1200) | 12.5 (1250) | 12.5 (1250) | 12.5 (1250) | 11.7 (1200) | |
| Hardness | -- | R45N | 78 | 80 | 80 | 80 | 78 | |
| Fracture Toughness | Notched Beam | MPam1/2 | 12 | 8 | 8 | 8 | 12 | |
| Flexural Strength (MOR) | F417-87 | MPa (Psi X 103 | 620 (90) | 951 (138) | 1200 | 1380 (200) | 551 (80) | |
| (3 Point) @ RT | ||||||||
| Tensile Strength @ RT | -- | MPa (Psi X 103) | 310 (45) | 550 (80) | -- | 690 (100) | 337 (49) | |
| Compressive Strength @ RT | -- | MPa (Psi X 103) | 1862 (270) | 2000 (290) | 2000 (290) | 2000 (290) | 2000 (290) | |
| Elastic Modulus | C848 | GPa (Psi X 106) | 206 (29.8) | 210 (30) | 210 (30) | 210 (30) | 200 (29) | |
| Poisson's Ratio | C848 | -- | 0.28 | 0.3 | 0.3 | 0.3 | 0.25 | |
| Thermal | C.T.E. 25 - 100° C | C 372-96 | X 10-6/C | 8.9 | 6.9 | 6.9 | 6.9 | 6.9 |
| C.T.E. 25 - 300° C | C 372-96 | X 10-6/C | 9.7 | 8.2 | 8.2 | 8.2 | 8.1 | |
| C.T.E. 25 - 600° C | C 372-96 | X 10-6/C | 10 | 10.6 | 10.6 | 10.6 | 10.5 | |
| Thermal Conductivity @ RT | C 408 | W/M K | 3 | 2 | 2 | 2 | 3.5 | |
| Max Use Temp | -- | Fahrenheit (°F) | 2200 | 932 | 932 | 932 | 1000 | |
| -- | Celsius (°C) | 1200 | 500 | 500 | 500 | 537 | ||
| Maximum Temperature (Inert) | -- | Celsius (°C) | 1500 | 1000 | 1000 | 1000 | 1155 | |
| Electrical | Dielectric Strength (.125" Thick) | D 149-97A | V/Mil | 300 | 240 | 240 | 250 | |
| Dielectric Constant @ 1 MHz | D 150-98 | -- | 22.7 | 30 | 30 | 30 | 30 | |
| Dielectric Constant | D 2520-95 | -- | 29.2 | -- | -- | -- | -- | |
| @ Gigahertz | D 2520-95 | -- | 6.2 | -- | -- | -- | ||
| Dielectric Loss @ 1 MHz | D 150-98 | -- | 0.0016 | 0.001 | 0.001 | 0.001 | 0.001 | |
| Dielectric Loss | D 2520-95 | -- | 0.0018 | -- | -- | -- | -- | |
| @ Gigahertz | D 2520-95 | -- | 6.2 | -- | -- | -- | -- | |
| Volume Resistivity, 25°C | D 257 | Ohms-Cm | > 1 X 1013 | > 1 X 1013 | > 1 X 1013 | > 1 X 1013 | > 1 X 1013 | |
| Volume Resistivity, 300°C | D 1829 | Ohms-Cm | 5 X 107 | 1 X 1010 | 1 X 1010 | 1 X 1010 | 1 X 1010 | |
| Volume Resistivity, 500°C | D 1829 | Ohms-Cm | 1 X 107 | 1 X 106 | 1 X 106 | 1 X 106 | 1 X 106 | |
| Volume Resistivity, 700°C | D 1829 | Ohms-Cm | 2 X 106 | 5 X 103 | 5 X 103 | 5 X 103 | 5 X 103 |
· Magnesia Stabilized Zirconia (MSZ) – magnesia stabilized; for high-temperature applications; it is not vulnerable to phase transformations at elevated temperatures; heterogeneous microstructure to protect against grain boundary sliding; transformation toughened; high fracture toughness
· Yttria Stabilized Zirconia (YTZP) – yttria stabilized; fine-grained microstructure predominantly tetragonal phase; extremely high strength and toughness; use temperatures below 500°C; transformation toughened to resist crack propagation; superior chemical resistance; excellent wear resistance
· Ceria Stabilized Zirconia (CSZ) – ceria stabilized high temperature, as well as high or low pH environments; transformation toughened; maintains strength in steam and pressure conditions; ceria fills crystal structure vacancies to prevent low temperature degradation
· Zirconia Toughened Alumina (ZTA) – zirconia toughened alumina; provides 20-30% greater strength than alumina at a lower cost than stabilized zirconias. Transformation toughened; Higher toughness, hardness and wear resistance than alumina
Advantages
- High Temperature Resistance
- Very High Impact Resistance
- Thermal Expansion Suitable For Ceramic-To-Metal Assemblies
- High Mechanical Strength
- Very High Wear Resistance
- Very Low Thermal Conductivity
- High Chemical Resistance (Acids/Bases)
MSZ Machining
MSZ can be machined in green, biscuit, or fully dense states. While in the green or biscuit form, it can be machined relatively easily into complex geometries. However, the sintering process that is required to fully densify the material causes the zirconia body to shrink approximately 20%. This shrinkage means that it is impossible to hold very tight tolerances when machining zirconia pre-sintering. In order to achieve very tight tolerances, the fully sintered material must be machined/ground with diamond tools. In this manufacturing process, a very precise diamond coated tool/wheel is used to abrade away the material until the desired form is created. Due to the inherent toughness and hardness of the material, this can be a time consuming and costly process.
Applications of Magnesia Stabilized Zirconia Crucible
High purity Zirconia Crucibles are widely used in:
-Chemical calcining -Metal casting
-Metal melting, especially in superalloy and precious metals industries
-Thermal analysis crucibles
Wear Parts
Precision Valve Seats And Seals
MWD Tools
Wear Sleeves
Pump Sleeves
Deep Well, Down Hole Components
Structural Ceramics
Roller Guides For Tube Forming
Bushings
Pump Pistons
Spray Nozzles
Ceramic Bearings
Packing of Magnesia Stabilized Zirconia Crucible
Standard Packing:
Sealed bags in carton boxes. Special package is available on request.
As a ceramic material, MSZ is quite fragile in a lot of cases. The MSZ Crucible are usually held in plastic bags by vacuum, and protected with heavy foam.
ATTs’ MSZ Crucible is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | ZrO2/MgO |
| MDL Number | N/A |
| EC No. | N/A |
Chemical Identifiers
| Linear Formula | ZrO2 |
| MDL Number | MFCD00011310 |
| EC No. | 215-227-2 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 62395 |
| IUPAC Name | Dioxozirconium |
| SMILES | O=[Zr]=O |
| InchI Identifier | InChI=1S/2O.Zr |
| InchI Key | MCMNRKCIXSYSNV-UHFFFAOYSA-N |
