Neutron and gamma ray synergistic protection glass-ceramic material and preparation method thereof

Abstract

The invention discloses a neutron and gamma ray synergistic protection glass-ceramic material and a preparation method thereof. According to the technical scheme, the preparation method comprises thesteps: ball-milling, drying and crushing aluminum borate powder to obtain an aluminum borate precursor; taking 30.0 to 40.0 wt% of boron oxide, 20.0 to 30.0 wt% of bismuth oxide, 5.0 to 10.0 wt% of phosphorus oxide, 5.0 to 10.0 wt% of silicon oxide, 10.0 to 15.0 wt% of barium oxide and 5.0 to 10.0 wt% of gadolinium oxide as raw materials, mixing, melting at the temperature of 1400-1600 DEG C, quenching with water, drying and crushing to obtain a glass shielding agent containing a radiation shielding component; and mixing the aluminum borate precursor, the glass shielding agent containing the radiation shielding component and a binding agent, carrying out mechanical pressing molding, drying, carrying out heat preservation at the temperature of 1000-1500 DEG C for 60-300 min, and carrying out furnace cooling to prepare the neutron and gamma ray synergistic protection glass-ceramic material. The prepared product is high in compressive strength, excellent in shielding performance, high inhydrothermal erosion resistance, excellent in irradiation resistance and good in thermal shock resistance.

Description

technical field [0001] The invention relates to the technical field of a synergistically protected glass-ceramic material. In particular, it relates to a glass-ceramic material for synergistic protection against neutrons and gamma rays and a preparation method thereof. Background technique [0002] Energy shortage is a common problem faced by the whole world. The two most effective ways to solve energy shortage are the development of new energy sources and energy saving and consumption reduction. For new energy sources, nuclear energy has become the world's three pillars of power energy supply along with thermal power and hydropower due to its low resource consumption and strong energy supply capacity, and is widely used by countries all over the world. In recent years, with the continuous development of nuclear power, people have begun to realize the service life of materials in nuclear reactors. Because the nuclear energy reactor will inevitably produce radiation effects...

AI Technical Summary

Problems solved by technology

At present, among the technologies for preparing radiation shielding materials: the patented technology of "Formulation of Radiation Shielding Lead Alloy" (CN201810476206.X) discloses a multi-layer special-shaped embedded structure radiation shielding material with lead alloy as the main raw material, although the technology The shielding performance of the radiation protection material in the material is enhanced, but its excessive lead content will have unavoidable negative effects on the human body and the environment

Today, the materials used in nuclear energy insulation systems are mainly glass products. Although they have good radiation protection capabilities, they are extremely brittle and are not conducive to construction. In addition, during long-term use, radiation modification will lead to glass products. Damage, which is intuitively manifested as bulging, peeling, etc., which will cause the radiation seal failure of the radiation protection system, and even cause radiation leakage in severe cases, threatening the operation safety of the nuclear energy system and the health of on-site personnel