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China, Chinese Aluminum Nitride Active Metal Brazed (AMB) Ceramic Substrate / Structural Parts1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Industrial Ceramic ProductsCeramic Structural ComponentActive Metal Brazed (amb) Ceramic SubstrateAluminum Nitride Amb Ceramic Structural Parts
Xiamen Innovacera Advanced Materials Co., Ltd.
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Product Description AMB (Active Metal Brazing) is for joining ceramics that are not wetted by 'conventional' brazes.By applying active metal like titanium to be added to the braze alloy, to achieve chemically reacts with the surface of the parent ceramic.Due to the coefficient of thermal expansion of Al2O3 (7.1 ppm/K), Si3N4 (2.6 ppm/K) and AlN (4.7 ppm/K) is close to that of silicon (4 ppm/K), Direct Bond Copper (DBC) and AMB are suitable substrates for robust packaging of bare dice since such assemblies.AMB is the promising thick film technology which can be applied to Power Electronics, Automotive Electronics, Home Appliances, Aerospace, Others.INNOVACERA provide DBC, DPC, and AMB technology for customized ceramic substrates, welcome to consult more.Despite the various machining methods available for aluminum nitride ceramics, precision machining often necessitates the use of CNC equipment. However, the formidable hardness of aluminum nitride, exceeding 11 GPa, renders conventional metal machining techniques ineffective. Firstly, machining aluminum nitride ceramics requires specialized tools and techniques distinct from those used for metals. Common tool materials such as tungsten steel should be avoided to prevent rapid deterioration of tool life. Instead, polycrystalline diamond (PCD) tools are preferred for grinding operations due to their diamond composition, enabling effective machining of aluminum nitride materials. Equally crucial is the establishment of rational machining paths, which significantly influence machining outcomes. During CNC machining of aluminum nitride ceramics, issues like edge collapse after piercing frequently arise. Implementing appropriate machining paths can preempt such occurrences, thereby enhancing the quality of aluminum nitride ceramic products. Secondly, equipment selection plays a pivotal role due to the hardness of aluminum nitride ceramics. Conventional CNC machine tools often lack the requisite rigidity to effectively machine these materials. Given the extreme hardness of aluminum nitride, machining inevitably induces greater vibrations than other materials. Insufficient rigidity may lead to tool chatter and jeopardize spindle accuracy. For optimal machining of aluminum nitride ceramics, dedicated ceramic machining centers with enhanced rigidity are recommended. These specialized machines mitigate vibration during machining, thereby safeguarding spindle integrity and offering superior protection against abrasive ceramic powders. Aluminium Nitride Material PropertiesMaterialALNItem No.INC-AN180INC-AN200INC-AN220ColorGrayGrayBeigeMain Content96%ALN96%ALN97%ALNMain CharacteristicsHigh Thermal Conductivity,Excellent Plasma ResistanceMain ApplicationsHeat Dissipating Parts,Plasma Resistance PartsBulk Density3.303.303.28Water Absorption000Vickers Hardness(Load 500g)10.09.59.Flexural Strength>=350>=325>=280Compressive Strength25002500-Young' Modulus of Elasticity320320320Poisson's Ratio0.240.240.24Fracture Toughness---Coefficient Linear Thermal Expansion40-400degree4.84.64.5Thermal Conductivity20degree180200220Specific Heat0.740.740.76Thermal Shocking Resistance---Volume Resistivity20degree>=10-14>=10-14>=10-13Dielectric Strength>=15>=15>=15Dielectric Constant1MHz98.88.6Loss Tangent*10-4556
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