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A low-temperature sealing glass containing mn and its preparation and use method

A technology of sealing glass and low temperature, which is applied in the field of low-temperature precision packaging glass, which can solve the problems that it is difficult to ensure the stability of sealing glass, the stability of refractive index, the change of valence state, etc., and achieve the effect of low price and stable process

Active Publication Date: 2019-03-12
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a recent study by our research group found that the Bi element in the glass is prone to valence changes during the heating process (Bi 3+ To Bi 5+ transformation), it is difficult to ensure the stability of the sealing glass, especially the stability of the refractive index

Method used

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  • A low-temperature sealing glass containing mn and its preparation and use method
  • A low-temperature sealing glass containing mn and its preparation and use method
  • A low-temperature sealing glass containing mn and its preparation and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] According to the proportioning of each component of the embodiment 1 of table 1, take respectively analytical pure raw material (B 2 o 3 、 Bi 2 o 3 , ZnO, MnO 2 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 1000°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with polyvinyl alcohol, fish oil, ethanol and toluene (80%, 2%, 1%, 10%, 7% by weight) to form a slurry, and disperse evenly in a ball mill; tape casting, natural Dry, then cut into the embryo body of the desired shape; place the embryo body on the part to be sealed, heat up in an electric furnace at a rate of 2°C / min, keep it at 400°C for 1 hour, and then heat up at a rate of 2°C / m...

Embodiment 2

[0033] According to the proportioning of each component of the embodiment 2 of table 1, take respectively analytical pure raw material (B 2 o 3 、 Bi 2 o 3 , ZnO, MnO 2 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 990°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with methylcellulose, polyvinyl alcohol, n-butanol and acetone (82%, 2%, 2%, 8%, 6% by weight) to form a slurry, and disperse evenly in a ball mill; Stretching, drying naturally, and then cutting the embryo body into the desired shape; placing the embryo body on the part to be sealed, heating it in an electric furnace at a rate of 2°C / min, keeping it at 380°C for 1 hour, and then hea...

Embodiment 3

[0035]According to the proportioning of each component of the embodiment 3 of table 1, take respectively analytical pure raw material (B 2 o 3 、 Bi 2 o 3 , ZnO, MnO 2 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 960°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with epoxy resin, polyacrylamide, isopropanol and toluene (84%, 1.5%, 0.5%, 9%, 5% by weight) to form a slurry, and disperse evenly in a ball mill; casting Shaped, dried naturally, and then cut into the embryo body of the desired shape; place the embryo body at the part to be sealed, heat up at a rate of 2°C / min in an electric furnace, keep it at 370°C for 1 hour, and then heat it at ...

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Abstract

The invention discloses Mn-containing low-temperature seal glass as well as a preparation method and use method thereof. The seal glass comprises the following raw materials: B2O3, Bi2O3, ZnO and MnO2. By virtue of the coordination of high-concentration Bi2O3 and B2O3, the softening temperature of the glass is decreased, and low-temperature sealing is realized; by adding MnO2, the refractive index of the glass can be stabilized, furthermore, the softening temperature of the seal glass is further decreased, the swelling coefficient of the glass can be further regulated, and the sealing performance of the seal glass can be remarkably improved. The preparation method has the beneficial effects that the raw materials are simple and easily available, the process is simple and stable, the cost is saved, and the practical utilization and industrialization conditions are achieved. The seal glass is applicable to the fields of photoelectric materials, low-temperature precise packaging and the like.

Description

technical field [0001] The invention belongs to the field of low-temperature precision sealing glass, and in particular relates to a low-temperature sealing glass containing Mn and a preparation and use method thereof. Background technique [0002] Low-temperature sealing glass (melting temperature and sealing temperature <600°C), due to its good heat resistance and chemical stability, high mechanical strength, is widely used in electronic paste, electric vacuum and microelectronics technology, energy, aerospace, In many fields such as automobiles, such as in solid oxide fuel cells (SOFC), the performance of the sealing material directly leads to the actual performance of the battery; in the application of electronic materials, the stability of the sealing glass also affects the LED The light decay rate has a great influence. At the same time, sealing glass can also be used for mutual sealing between glass, ceramics, metals and semiconductors. In view of the environment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/24C03C3/14
CPCC03C3/14C03C8/24
Inventor 张腾林城苏鸿斌林德伟
Owner FUZHOU UNIV
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