| The low-softening glass and glass-ceramics with the low melting temperature and sealing temperature, were widely applied in sealing and conductive slurry field. For years,Lead glass has been used to the low-softening glass. As the strengthening of environmental protection consciousness, lead glass will be eliminated. The low- softening Borosilicate glass system, which has good thermal stability, chemical stability, water resistance and mechanical properties, will cause the attention of people.For the purpose of low softening glass and low melting glass,this paper studied the Characteristic temperature and Chemical stability of the glass by adjusting the content of oxides. With the different heat treatment temperature and oxides the mechanical properties and Chemical stability of the low softening glass ceramics were studied by means of DSC, XRD, and SEM .The results showed that: In the forming range of glass, the Chemical stability softening and melting temperature of the glass were changed with the different content of oxides. The low softening glass-ceramics was obtained by two-step heating treatment process. The different heat treatment temperature and oxides can change the crystallization phase of glass-ceramics, influence the performance of glass-ceramics.when the content of ZnO is not changed ,the Nucleation temperature was 580℃and Crystallization temperature was 730℃,the main crystallization phase of glass-ceramics was Zinc titanate, the second phase were petedunnite, the maximum bending strength of the glass-ceramics is 120.4Mpa,the maximum density was 2.75g/cm3 ,and the minimum water absorptivity was 0.17%. when the content of ZnO is 20%,these crystallization phases were dense and uniform。the maximum bending strength of the glass-ceramics is 140Mpa,the maximum hardness of the glass-ceramics is 690.6Hv,the maximum density was 2.8g/cm3 ,and the chemical stability was good.
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