Iron-ore-imbedded silicone rubber materials were produced for radiation shielding. Samples were tested against a Co-60 gamma source, which is widely used in nuclear technology and medicine. Decreasing the particle siz...Iron-ore-imbedded silicone rubber materials were produced for radiation shielding. Samples were tested against a Co-60 gamma source, which is widely used in nuclear technology and medicine. Decreasing the particle size of iron ore resulted in better gamma radiation protection owing to more homogenous distribution. In addition, the materials had flexible properties up to the addition of 60 wt% iron ore content. Further, 0.5 mm Pb E gamma protection was provided by using 2.06-mm-thick SDT-60 as the Co-60 source. Iron ore–silicone rubber composites are candidate materials for lead-free flexible radiation protection systems owing to their relatively inexpensive and easy production.展开更多
This article summarizes the developing situation of environmentally friendly copper alloy at home and abroad,focusing on developing situation of silicon phosphorus brass. It is considered that this series of alloy is ...This article summarizes the developing situation of environmentally friendly copper alloy at home and abroad,focusing on developing situation of silicon phosphorus brass. It is considered that this series of alloy is a good low-cost environmentally friendly alloy based on rich element. It has important application prospect in sanitary system and is an important revolution made to lead brass material which has been used for a long period in history.展开更多
文摘Iron-ore-imbedded silicone rubber materials were produced for radiation shielding. Samples were tested against a Co-60 gamma source, which is widely used in nuclear technology and medicine. Decreasing the particle size of iron ore resulted in better gamma radiation protection owing to more homogenous distribution. In addition, the materials had flexible properties up to the addition of 60 wt% iron ore content. Further, 0.5 mm Pb E gamma protection was provided by using 2.06-mm-thick SDT-60 as the Co-60 source. Iron ore–silicone rubber composites are candidate materials for lead-free flexible radiation protection systems owing to their relatively inexpensive and easy production.
文摘This article summarizes the developing situation of environmentally friendly copper alloy at home and abroad,focusing on developing situation of silicon phosphorus brass. It is considered that this series of alloy is a good low-cost environmentally friendly alloy based on rich element. It has important application prospect in sanitary system and is an important revolution made to lead brass material which has been used for a long period in history.