micro Zirconia Ceramic locating welding pin needle
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Zirocnia Ceramics:
Zirconia is a new type of structural ceramic developed in the 1970s. It has excellent mechanical properties and is widely used. The pure phase change of pure zirconia from high temperature cooling to room temperature will occur as follows: cubic phase (c) to tetragonal phase (t) to monoclinic phase (m), where t to m phase transition occurs around 1150 ° C, and With a volume expansion of about 5%. If the t to m phase transition point of ZrO2 is stabilized to room temperature, it will induce a t-to-m phase change due to stress during loading, and a large amount of fracture energy will be absorbed due to the volume effect caused by the phase change, so that the material exhibits an abnormally high The fracture toughness, phase transformation toughening, high toughness and high wear resistance. Common ZrO2 stabilizers are rare earth or alkaline earth oxides, and only oxides whose ionic radius differs from Zr4+ radius by no more than 40% can be used as stabilizers for zirconia. The current stabilization mechanism is not well understood. Different amounts of stabilizer can be added to obtain Zirconia Ceramics with different phase compositions. If some t-ZrO2 is metastable to room temperature, partially stabilized zirconia (PSZ for short) is obtained; if t-ZrO2 is all metastable to room temperature, A polycrystal containing only tetragonal zirconia (abbreviated as TZP); if c-ZrO2 is metastable to room temperature, a c-ZrO2 single-phase material, that is, fully stabilized zirconia (referred to as FSZ) is obtained. Both PSZ and TZP contain a phase-changeable tetragonal phase, which is a commonly used phase-change toughened ceramic.
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
Application industry:
Machinery, fiber optic, knife, medical, food, petroleum etc.
Specific application:
plunger, Ceramic Shaft, fiber optic bushing, stub, grinding, ceramic knife, ceramic slide guide, machined plunger, mobile phone shell, watch case, haircut razor blade etc.
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.Short 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
FAQ
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
