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Silicon nitride is one of the hardest ceramics but also one of the most resistant. Si3N4 is mainly used in severe environments which combine extreme temperatures with abrasive and/or corrosive medium. Silicon nitride can be of different grades : sintered, hot pressed or reaction bonded. Selection of materials Microcertec offers two high-purity Si3N4 grades that are particularly suited for hostile environments : sintered silicon nitride hot pressed silicon nitride Both Si3N4 materials are mainly designed to be used in thermal-mechanical or corrosion-resistance applications because they show an outstanding behaviour to resist to wear, thermal shocks and corrosion (liquids and gases). Moreover, these pure Si3N4 grades offer a low thermal expansion. Properties Sintered silicon nitride and HP Si3N4 have the following properties : low density excellent thermal shock resistance excellent wear resistance excellent corrosion resistance (liquids and gas) low coefficient of thermal...

Item: Phytophanere Hair & Nails Dietary Supplement Main Purpose: Anti-Hair Loss Volume: 240 Caps (2x120 caps) Condition: New Expiration Date: 01/2027 Country of Manufacture: Italy UPC: 3338221001085 Brand: PHYTO Net Weight: 40,8 gr Department: Adult, Unisex Type: Hair Loss Prevention Hair Color Shade: Brown Formulation: Tablets/Capsules Hair Type: All Hair Types Features: Paraben-Free, Contains Vitamins Location: Paris, France