Instead of foreseeing and preparing for all possible scenarios of machine failures,accidents,and other challenges arising in space missions,it appears logical to take advantage of the flexibility of additive manufactu...Instead of foreseeing and preparing for all possible scenarios of machine failures,accidents,and other challenges arising in space missions,it appears logical to take advantage of the flexibility of additive manufacturing for“in-space manufacturing”(ISM).Manned missions into space rely on complicated equipment,and their safe operation is a great challenge.Bearing in mind the absolute distance for manned missions to the Moon and Mars,the supply of spare parts for the repair and replacement of lost equipment via shipment from Earth would require too much time.With the high flexibility in design and the ability to manufacture ready-to-use components directly from a computer-aided model,additive manufacturing technologies appear to be extremely attractive in this context.Moreover,appropriate technologies are required for the manufacture of building habitats for extended stays of astronauts on the Moon and Mars,as well as material/feedstock.The capacities for sending equipment and material into space are not only very limited and costly,but also raise concerns regarding environmental issues on Earth.Accordingly,not all materials can be sent from Earth,and strategies for the use of in-situ resources,i.e.,in-situ resource utilization(ISRU),are being envisioned.For the manufacturing of both complex parts and equipment,as well as for large infrastructure,appropriate technologies for material processing in space need to be developed.展开更多
Advanced ceramic materials have been widely used in a range of high-end technical fields due to their high mechanical performance,chemical stability,and impressive acoustic,optical,electrical,magnetic,and thermal prop...Advanced ceramic materials have been widely used in a range of high-end technical fields due to their high mechanical performance,chemical stability,and impressive acoustic,optical,electrical,magnetic,and thermal properties.With the continuous improvement of the current level of science and technology,especially in cutting-edge application scenarios,the structural and functional requirements of advanced ce-ramic parts are becoming increasingly higher.展开更多
文摘Instead of foreseeing and preparing for all possible scenarios of machine failures,accidents,and other challenges arising in space missions,it appears logical to take advantage of the flexibility of additive manufacturing for“in-space manufacturing”(ISM).Manned missions into space rely on complicated equipment,and their safe operation is a great challenge.Bearing in mind the absolute distance for manned missions to the Moon and Mars,the supply of spare parts for the repair and replacement of lost equipment via shipment from Earth would require too much time.With the high flexibility in design and the ability to manufacture ready-to-use components directly from a computer-aided model,additive manufacturing technologies appear to be extremely attractive in this context.Moreover,appropriate technologies are required for the manufacture of building habitats for extended stays of astronauts on the Moon and Mars,as well as material/feedstock.The capacities for sending equipment and material into space are not only very limited and costly,but also raise concerns regarding environmental issues on Earth.Accordingly,not all materials can be sent from Earth,and strategies for the use of in-situ resources,i.e.,in-situ resource utilization(ISRU),are being envisioned.For the manufacturing of both complex parts and equipment,as well as for large infrastructure,appropriate technologies for material processing in space need to be developed.
文摘Advanced ceramic materials have been widely used in a range of high-end technical fields due to their high mechanical performance,chemical stability,and impressive acoustic,optical,electrical,magnetic,and thermal properties.With the continuous improvement of the current level of science and technology,especially in cutting-edge application scenarios,the structural and functional requirements of advanced ce-ramic parts are becoming increasingly higher.
