Technical Ceramic Industrial Si3n4 Silicon Nitride Rod/Bar/Shaft

Technical Ceramic Industrial Si3N4 Silicon Nitride Rod/Bar/Shaft The prime features of silicon nitride ceramic shaft1.Low density:  3.2 g/cm 3   with lightweight than most of other technical ceramics 2. Superior hardness, it's one of most hardest technical ceramic than others 3. Great wear resistance due to its exceptional hardness and self-lubricity 4. Low coefficient of thermal expansion and high thermal conductivity (20 W/m.k) 5. Great thermal shock resistance, it's up to 1000ºC under the special atmosphere 6. High mechanical strength and well resistance to impact than other advance ceramics 7. Heat & high-temperature resistance, The max. service temperature can be up to 1300ºC 8. Chemical and corrosion resistance, resistant to almost all inorganic acids and many organic acids 9. At the same time, Silicon nitride is a high-performance electrical insulation material The specification of the ceramic rod shaftMaterial optionSilicon nitride(Si3N4), Zirconia (ZrO2),  Alumina(Al2O3), Silicon carbide(SiO2)Forming methodsDry pressed, Ceramic injection molding, Hot pressed, ISO pressedSpecificationOD can be from 1 to 50mm, length can be from 10mm to 800mmPrecision processingCNC machining, Precision grinding, Polishing, Lapping, ToleranceThe tolerance of OD and ID can be 0.001mm,  the tolerance of length can be 0.001mmKey parametersRoughness to be 0.02mm, Parallelism to be 0.001mmSurface qualityFree of cracks, foreign contamination, mirror surface better than Ra0.1The description of silicon nitride ceramic rod shaftSilicon nitride is a man-made compound synthesized through several different chemical reaction methods. Parts are pressed and sintered by well-developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance. High-performance silicon nitride materials were developed for automotive engine wear parts, such as valves and cam followers, and proven effective. The cost of the ceramic parts never dropped enough to make the ceramics feasible in engines and turbochargers. The very high-quality bodies developed for these demanding high-reliability applications are available today and can be used in many severe mechanical, thermal, and wear applications. The typical application of silicon nitride ceramicsThey are widely used for producing bearings, shaft, gas turbine blades, mechanical seal rings, and permanent molds, steam nozzle, the heated surfaces of engine components The gallery of Si3N4 ceramic parts  Datasheet of Technical ceramicsPropertyUnitMaterialSi3N4  99.5% Al2O399% Al2O396%Al2O3ZrO2Densityg/cm3≥3.20≥3.90≥3.85≥3.65≥6.0Water absorption%-0000HardnessHV-1700170015001300Flexural strengthMpa≥600≥379≥338≥320≥1200Compressive strengthMpa≥2500≥2240≥2240≥2000≥1990Fracture toughnessMpa m1/264-54-53-46.5-8Max. service temperatureºC12001675160014501000Coefficient of thermal expansion (CTE)1×10 -6 /ºC3.26.5~8.06.2~8.05.0~8.08.0~9.5Thermal shockT(ºC)≥600≥250≥200≥220≥300Thermal conductivity(25ºC)W/m.k203029243Volume resistivityohm.cm     25ºC->1 x 10 14>1 x 10 14>1 x 10 14>1 x 10 11300ºC-1 x 10 128 x 10 1110 12 -10 131 x 10 10500ºC-5 x 10 102 x 10 91 x 10 91 x 10 6Insulation strengthKV/mm 19181817Dielectric constant(1Mhz)(E)69.79.59.529  Our capability and strengthWe have in-housing comprehensive manufacturing types of equipment, including forming, sintering,CNC machining, precision grinding, laser cutting, and so on, it helps us to control the quality very well.Also, it greatly benefits cost control.The state of the art manufacturing equipmentRigorous Quality-control SystemRemark:We have the complete quality-control system per ISO9001, including IQC, IPQC, QA, and OQC process.Typical Packaging Proposal and Transportation Methods1. Packaging proposal2. Regular Transporation MethodsFAQs (Frequently Asked Questions)Q1. Are you a factory or trading company?A: We are a manufacturer of over 15 years of experience. You are welcome to visit our factory.Q2: Do you send a sample to check?A: Sure, the sample is free and freight collect.Q3: When will you ship it?A: If the products are in storage, we'll ship within 48 hoursQ4: When can I get the price?A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.Please call us or tell us in your email so that we will proceed with your inquiry as a priority.Q5: Is it available to provide customized products?A: We always support custom-made demand as per different materials, dimensions, and designs./* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1