Home → Product Info→Quartz part Quartz developed as high performance lamp gy GE(General Electric) is largely divided into diffusion part and spare part SOLMICS mainly produces the latter one. Although it is quick-consumed disadvantageously, it is continuously used for high capacity wafer integration and large-sized LCD plate owing to its high purity and transparency. High purity properties,excellent electric insulation,low expansion and less gas content Specific heat and conductivity : transparent quartz glass has 20~1,000 °C specific heat and 0~100(1.3~1.5 w/mk)°C conductivity. SOLMICS produces various shapes of ring types necessary for spare parts and secures a unique technologically precise process. Focus Ring 2-step Ring Belljar Boat Tube Cap Bath Other products : wide pockets, shadow rings, base plates, lifter pins, shield rings, etc Purity % 99.99 Bulk Density [g/cc] 2.15~2.21 Vickers Hardness [GPa] Load0.5Kg HVI-9.807N 8.6 Bending Strength [MPa] 70 Compressive Strength [Mpa] >1100 Youngs Modulus [Gpa] 72 Poissons Ratio 0.17 Thermal Conductivity [W/mK] 1.5 Thermal Expansion [x10-6/°C] 0.5 Heat Shock Strength [△T°C] >1000 Specific Heat [RT] (J/kg.K)   Max Useable Temperature [°C] 1200(1350) Volume Resistivity [Ω. ㎝] >1014 Dielectric Strength [V/m]   Dielectric Constant [25°C 1MHZ] 3.75