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{"title":"Silicon Nitride Ceramic Welding Positioning Block with High Thermal Conductivity","imgUrl":"https:\/\/img.chinax.com\/nimg\/f7\/91\/ef9390ab418373409272be73f426-200x200-1\/silicon_nitride_ceramic_welding_positioning_block_with_high_thermal_conductivity.jpg","attrs":{"Type":"Ceramic Parts","Place of origin":"Jiangsu,China","Processing service":"Welding,Cutting,Moulding,CNC","Thermal Conductivity":"15 W\/m.k"}}
{"title":"Blue Zirconia Ceramic Guide \/ Welding Pin With Extremely High Wear Resistance","imgUrl":"https:\/\/img.chinax.com\/nimg\/de\/d1\/2a669eae1adb20c2e20d5c8c39c9-200x200-1\/blue_zirconia_ceramic_guide_2f_welding_pin_with_extremely_high_wear_resistance.jpg","attrs":{"Brand Name":"BLM","Model Number":"BLM-S","Certification":"ISO","Place of Origin":"Jiangsu,China"}}
{"title":"Si3N4 High Strength Silicon Nitride Ceramic Welding Pins Industrial","imgUrl":"https:\/\/img.chinax.com\/nimg\/24\/c7\/b2619d15cc9383353f69e6bd3cd5-200x200-1\/si3n4_high_strength_silicon_nitride_ceramic_welding_pins_industrial.jpg","attrs":{"Minimum Order Quantity":"10PCS","Price":"Negtation","Payment Terms":"T\/T","Supply Ability":"500pcs per month"}}
{"title":"Custom Polished Si3N4 Ceramic Guide Pin For Industrial Ceramic","imgUrl":"https:\/\/img.chinax.com\/nimg\/1c\/a0\/46f4ba7677272448401a844392d9-200x200-1\/custom_polished_si3n4_ceramic_guide_pin_for_industrial_ceramic.jpg","attrs":{"Brand Name":"BLM","Model Number":"BLM-S","Certification":"ISO","Place of Origin":"Jiangsu,China"}}
{"title":"Industrial High Strength Si3N4 Ceramic Welding Pins Customized","imgUrl":"https:\/\/img.chinax.com\/nimg\/c8\/a2\/ffd5c771c550590ef6e0c28ce5dc-200x200-1\/industrial_high_strength_si3n4_ceramic_welding_pins_customized.jpg","attrs":{"Brand Name":"BLM-kcf-1","Place of Origin":"Jiangsu, China (Mainland)","Minimum Order Quantity":"1pcs","Price":"FobShanghai usd 3.5-5\/pc"}}
{"title":"Customized Silicon Nitride Ceramic Parts Si3N4 Bush Ring For Industrial","imgUrl":"https:\/\/img.chinax.com\/nimg\/b7\/b3\/d3aee7a8f1feb61ed9575d73bbe1-200x200-1\/customized_silicon_nitride_ceramic_parts_si3n4_bush_ring_for_industrial.jpg","attrs":{"Brand Name":"BLM-SN-1","Place of Origin":"Jiangsu, China (Mainland)","Minimum Order Quantity":"Negotiation","Price":"Negotiation"}}
{"title":"11mm G5 Si3N4 Silicon Nitride Ceramic Bearing Balls High Precision","imgUrl":"https:\/\/img.chinax.com\/nimg\/0f\/13\/ea040a198355944e1f795a845437-200x200-1\/11mm_g5_si3n4_silicon_nitride_ceramic_bearing_balls_high_precision.jpg","attrs":{"Brand Name":"BLM-SN-1","Model Number":"Customized","Place of Origin":"Jiangsu, China (Mainland)","Minimum Order Quantity":"1pcs"}}
25-30 days subject to the clients' requirement and quantity
Packaging Details
packed and labeled according to the regulations and customer's requests.Great care is taken to avoid any damage which might otherwise be caused during storage or transportation.
25-30 days subject to the clients' requirement and quantity
Packaging Details
packed and labeled according to the regulations and customer's requests.Great care is taken to avoid any damage which might otherwise be caused during storage or transportation.
Used for electronic appliances and textile machinery applications.
Material Description
Silicon nitride (Si₃N₄) ceramics is an inorganic non-metallic compound with strong covalent bonds. Its basic structural unit is a tetrahedron where the silicon atom is located at the center and four nitrogen atoms are located at the four vertices. This forms a continuous and strong network structure in three-dimensional space, resulting in exceptional material properties.
Silicon nitride exists in three crystal forms, with two common types:
α-Si₃N₄: Needle-like crystals, white or off-white in color
β-Si₃N₄: Darker colored, dense granular polyhedron or short prism
Both are hexagonal crystal structures. The α phase has higher hardness but is chemically unstable compared to the β phase, which transforms at high temperatures. Therefore, β-Si₃N₄ is the primary form used in silicon nitride ceramics.
Performance Characteristics
Physical Properties
Thermal properties: High-temperature refractory substance with no melting point, decomposes at approximately 1900°C under normal pressure
Excellent creep resistance under high pressure
Softening point up to 1800°C for reaction sintered silicon nitride without binder
Good thermal conductivity
Low thermal expansion coefficient
Excellent electrical insulation performance with small dielectric coefficient and high breakdown voltage
Chemical Properties
Oxidation resistance: Does not react with oxygen in dry atmosphere below 800°C
Molten metal corrosion resistance: Resists infiltration and corrosion from elemental metal melts (except copper)
Resistance to acid, alkali and salt corrosion: Soluble in hydrofluoric acid but resistant to dilute acids
Mechanical Properties
Excellent high-temperature strength with minimal strength attenuation at 1200°C compared to room temperature
Very low high-temperature creep rate due to strong covalent bonds
High hardness, second only to superhard materials like diamond, cubic BN, and B₄C
Low friction coefficient with self-lubricating properties similar to oiled metal surfaces
Applications
Automotive Industry: Used as engine component material including lower wear rocker pads, turbochargers for reduced inertia and engine lag, and waste gas control valves for improved acceleration.
Bearings: Silicon nitride ceramics offer excellent impact resistance, making them ideal for high-performance bearings. Used in NASA space shuttle main engines, high-end automotive bearings, industrial bearings, wind turbines, and various sports equipment.
High Temperature Applications: One of the few monolithic ceramic materials capable of surviving severe thermal shocks and thermal gradients in hydrogen/oxygen rocket engines.
Medical Applications: Used in orthopedic applications and as an alternative to PEEK and titanium in spinal fusion devices. The hydrophilic, microstructured surface contributes to strength, durability and reliability.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2017
Total Annual:
1000000-3000000
Employee Number:
10~50
Ecer Certification：
Verified Supplier
Bloom(Suzhou) Materials Co., Ltd ，which located in the beautiful city of Zhangjiagang , Suzhou,China.
Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on... Bloom(Suzhou) Materials Co., Ltd ，which located in the beautiful city of Zhangjiagang , Suzhou,China.
Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on...
