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MgPSZ Zirconia Ceramic Balls
Turn to Weihua New Materials, formerly Carpenter Advanced Ceramics, advanced zirconia ceramics for your toughest material problems. Weihua New Materials's zirconia offers ideal solutions for many difficult applications where wear, abrasion, impact, corrosion and high temperatures cause conventional materials to fail. Weihua New Materials's patented compositions and highly-controlled manufacturing processes ensure that you will be working with the strongest, toughest, most consistent Mg-PSZ that you can buy - anywhere.

MgPSZ Zirconia Ceramic Balls

 

Our companys Magnesia-partially Stabilized Zirconia (MgPSZ) is optimum choice for precision ceramic balls where the traditional metal alloys are not ideal. Precision balls made with Mg-PSZ Zirconia have superior abrasion resistance as compared to Stainless Steel, D2-Steel, Stellite Alloys 6 and Tungsten Carbide. In addition, Zirconia is inert to virtually all acids, bases, solvents, and other corrosive slurries and fluids.

MgPSZ zirconia ceramic balls will allow you to extend service life enabling you to improve operating efficiency, reduce maintenance costs, and minimize downtime with less frequent repairs. Our zirconia is extremely strong, has superior toughness, and excellent abrasion resistant. Additionally we use a proprietary manufacturing process, starting with the highest purity raw materials that results in a chemically superior zirconia product as compared to the competition. This translates into superior chemical stability of the ceramic components in operation when subject to the corrosive liquids and slurries.

The range of dense structural ceramics using proprietary zirconia ceramics includes custom blended ceramic alloy powders formed by isopressing or extrusion to meet customer specifications. These ceramic alloy components are used in extreme wear and corrosion applications in the chemical and petrochemical industry as well as components for health-care and dental applications.

Our company specializes in larger ziconia balls and maintains some stock of finished balls sizes that include: Grade 25 Balls 3/4” to 1 1/2” OD, Grade 100 Balls 2” to 4” OD. Additionally some smaller ziconia balls from ½” to 11/16” OD (G25) are also in stock along with un-ground ball “blanks” in a range of these sizes. Mg-PSZ Balls provide better (6X) Abrasion Resistance than Tungsten Carbide along with better (3X) Impact Resistance than Silicon Carbide.

Proven applications for structural zirconia ceramic includes: Chemicals [hot caustic, acids, solvents], Materials handling [abrasive fluids, suspensions], High velocity fluids, Oil and gas (pipe spools, liners, sleeves), Pulp and paper, Metal forming and All wear-prone and corrosive environments.

In addition to ziconia ceramic balls, the types of dense, structural ceramic components produced by Weihua include: valve components, liners-sleeves, plugs, pistons, precision, press tooling, dental blanks, extrusion tooling and wear plates. Other specialty products include a range of porous ceramic filters, diffusers and adsorbent filter/drier cores for refrigeration applications, dispersion parts, vacuum chucks, inkpads and gas probes.

We work closely with our customers to define their needs and the requirements of each specific structural ceramic application. Our engineering and sales team is great at attacking technical design and process problems, then customizing an innovative solution using our broad range of advanced industrial ceramics. Contact us with your application requirements please.

Zirconia Ceramic is a ceramic material consisting of at least 90% of Zirconium Dioxide (ZrO2).
Zirconium Oxide is produced from natural minerals such as Baddeleyite (zirconium oxide) or zirconium silicate sand.
Pure zirconia changes its crystal structure depending on the temperature:
At temperatures below 2138 ºF (1170 ºC) zirconia exists in monoclinic form.
At the temperature 2138 ºF (1170 ºC) monoclinic structure transforms to tetragonal form which is stable up to 4300 ºF (2370 ºC).
Tetragonal crystal structure transforms to cubic structure at 4300 ºF (2370 ºC).
Structure transformations are accompanied by volume changes which may cause cracking if cooling/heating is rapid and non-uniform.
Additions of some oxides (MgO, CaO,Y2O3) to pure zirconia depress allotropic transformations (crystal structure changes) and allow to stabilize either cubic or tetragonal structure of the material at any temperature.
The most popular stabilizing addition to zirconia is yttria (Y2O3), which is added and uniformly distributed in proportion of 5.15%.
Depending on sintering temperature and other processing parameters, the following forms of stabilized zirconia may be prepared:
1. Fully stabilized zirconia (FSZ) with cubic crystal structure;
2. Partially stabilized zirconia (PSZ) with mixed structure (cubic+tetragonal);
3. Polycrystalline tetragonal zirconia (TZP) with metastable tetragonal structure of very fine zirconia grains sintered at low temperature.

The following characteristics are typical for Zirconia Ceramics:
High density – up to 380 lb/ft³ (6.1*10³ kg/m³);
Low thermal conductivity – 10% of that of alumina ceramics;
High fracture toughness & Very high flexural strength and hardness;
High maximum service temperature – up to 4350 ºF (2400 ºC).
coefficient of thermal expansion similar to that of cast iron;
Modulus of elasticity similar to steel;
High chemical resistance & High resistance to molten metals;
Good wear resistance & Low coefficient of friction;
Oxygen ion conductivity (used for oxygen sensors and high temperature fuel cells).

Zirconia ceramics are used for manufacturing Extrusion dies, powder compacting dies, cutting tools, balls and seats for ball valves, thread and wire guides, pump seals, impellers and shaft guides, engine parts, oxygen sensors, fuel cells membranes,high temperature heaters for electric furnaces, bearings (e.g., bearings for submersible pumps).

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