Machinable Fluorophlogopite Ceramics

Fluorophlogopite CeramicsItis a polycrystalline composite made of fluorophlogopite and glass.It possesses good machinability and can be lathed, milled, planed, ground, bored, incised and threaded. It also has the advantages of insulation, pore-free, high/low-temperature resistant, acid and alkali resistant and thermal impact resistant. 

Main properties

Magnetic susceptibility                               ≤1.2×10-6

Dielectric constant                                      6～7

Breakdown voltage                                    ≥15 KV/mm

Flexural strength                                          ≥108Mpa

Fracture Modulus                                       15000bf/in2

mpact toughness                                        ≥ 3.8 KJ/m2

Knoophardness                                           176～343 kg/mm2

Volume density 　                                       2.5～2.8 g/cm3

Range of operating temperature                -200～+1000℃

Thermal expansion coefficient                   ≤94×10-7 /K

hermal conductivity                                   ≥ 1.7 W/m·K

Applications

It is widely used for nuclear, microwave high vacuum insulation, high precision magnetism-free skeleton for aeronautic and astronautic electrical devices, ultra-high voltage insulation for electric motors and structural parts at strong erosion environments. In terms of machinability, it can take place of aluminum oxide and boron nitride ceramics that are difficult to machine