molding dry pressing casting Zirconia Ceramics parts
Reputation depends on quality, quality comes from Hard!
The transition between the ZrO2 tetragonal phase and the monoclinic phase is a martensitic transformation, which has a volume expansion of 3 to 5% and a shear strain of 7 to 8% due to the transformation of the tetragonal phase into a monoclinic phase.  Therefore, pure ZrO2 products tend to undergo a phase transition from t-ZrO2 to m-ZrO2 during the production process (cooling process from high temperature to room temperature) and cracks or even cracks accompanying volume changes, so it is not much Engineering value. However, when a suitable stabilizer (such as Y2O3, MgO2, CaO, CeO2, etc.) is added, the phase transition temperature of c-ZrO2 → t-ZrO2 and t-ZrO2 → m-ZrO2 can be lowered to stabilize the high temperature c-ZrO2. The phase with t-ZrO2 can also be stabilized or metastable at room temperature. When the amount of stabilizer added is sufficient, the high temperature stable c-ZrO2 can be kept at room temperature without phase change. Further studies have found that zirconia undergoes a martensitic transformation accompanied by changes in volume and shape, absorbs energy, slows stress concentration at the crack tip, prevents crack propagation, and improves ceramic toughness. Therefore, the research and application of zirconia phase transformation toughened ceramics have been rapidly developed. There are three types of zirconia transformation toughening ceramics, which are partially stabilized zirconia ceramics; tetragonal zirconia polycrystalline ceramics and zirconia toughened ceramics.
Data Sheet↓ Color: Customized Density: 6.0g/cm3 Zirconia Content: 94.4% Gas permeability: 0 Water Absorption: 0 Crystal Size: 0.5um Rockwell Hardness(45N): 78R45N Vickers Hardness (Load 500g): 11.5(1175)Gpa(Kg/mm²) Flexural Strength(20°C): 800Mpa
Compressive Strength(20°C): 2000Mpa
Modulus of Elasticity(20°C): ＞200Gpa Fracture Toughness(20°C): 9.0 MPam1/2 Thermal Conductivity(20°C-400°C): 2.5W(m.K) Thermal Expansion Coefficient: 9.6 10-6/°C Thermal Shock Resistance: 250 △T°C
Machinery, fiber optic, knife, medical, food, petroleum etc.
plunger, Ceramic Shaft, fiber optic bushing, stub, grinding, ceramic knife, ceramic slide guide, machined plunger, mobile phone shell, watch case, haircut razor blade etc.
Shenzhen Hard Precision Ceramic CO.,Ltd founded in 2007, located in Shenzhen of China. We are a company that integrates development, design, molding, sintering, production and sales of precision ceramic products. After 10 years of development, we have cooperated with more than 2000 customers and 60 universities; Our factory covers an area of 2000 square meters, 50 employees, and annual production value of nearly 20 million. We have a higher visibility and better reputation in the same industry.Our products include ceramic rods, tubes, plates, blocks and precision parts for industrial. We have all-line high precision equipments from ceramic forming, sintering to precision machining. Hope for a wide range of sincere cooperation with customers at home and abroad.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Show time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad.
7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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