Refractory Ceramic Crucibles for Precision Casting (1750 C degree)¹

Product Description Refractory Ceramic Crucibles for Precision Casting (1750 C degree)Performance   Item                                                                           Unit                          99 Al2O3             Physical Characteristics       Heat resistance0C1800 Bulk density                             g/cm33.9 Water absorption                   %0 Flexural strength                     Mpa360Mechanical Characteristics         Hardness vickers                   Gpa15.6 Elastic modulus                         Gpa370 Poisson's ratio                           -0.23Thermal Characteristics       Linear expansion coefficient                         (200C-5000C) 10-6/0C8 Thermal conductivity               w/(m.k)32 Specific Heat                           *10-3J/(kg*K)0.9Electrical Characteristics     Dielectric constant (1MHZ)       -9.9 Dielectric loss angle                  *10-41 Dielectric*106V/m15     strength                     

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