Aluminium-based insulation dielectric paste and preparation method thereof

摘要: The invention discloses aluminium-based insulation dielectric paste and a preparation method thereof. comprises the following materials in parts by mass: 20 to 40% of organic carrier, 60 80% low-melting-point glass powder 0 3% coloring agent; consists Li2CO3, K2CO3, Rb2CO3, ZnO, SiO2, Bi2O3, B2O3, CaO, BaO, SrO, V2O5, P2O5, TiO2 Sb2O3; has advantages that 1, coefficient thermal expansion is greater than 16*10 m/K, so can be well matched with an aluminium substrate, melting point smaller 600 DEG C, sintered under aluminium; 2, when made into layer, layer good binding force metal high breakdown voltage excellent performance. steps of: preparing powder; carrier; paste.