Leadless aluminum dielectric material and preparation method thereof

• Main Authors: DENG TAIJUN, SUN SHUYUN, WU SHENGHONG, LI JINGZHANG
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2012
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention provides a leadless aluminum dielectric material used on pure aluminum or aluminum alloy and a preparation method thereof. The preparation method of the invention comprises the following steps: firstly, mixing SiO2, B2O3, TiO2, Al2O3, ZnO, MgO, K2O, Na2O, Li2O and Bi2O3 in a certain proportion, melting the mixture in a heating furnace at 1000 DEG C, and quenching with water; then carrying out wet milling in a corundum ball milling tank for one hour and drying to obtain the leadless aluminum dielectric material; then mixing the leadless aluminum dielectric material and a certain amount of organic solvent and putting the mixture into the corundum ball milling tank for ball milling to obtain a printing material; printing the printing material onto the pure aluminum or the aluminum alloy; and then drying and sintering. The leadless aluminum dielectric material of the invention has the characteristics of no lead pollution to the environment, acid and alkaline corrosion resistance, high rigidity, good