Theoretical consideration was conducted on a relation between pore diameter and interfacialarea between pores and fibers when pores uniforinly distribute in C/C composites. It was shownthat bonding at the fiber/matrix...Theoretical consideration was conducted on a relation between pore diameter and interfacialarea between pores and fibers when pores uniforinly distribute in C/C composites. It was shownthat bonding at the fiber/matrix interface apparently decreased with decreasing a pore diameter,and consequently a new idea of microspace modification concept was proposed for controllingfracture behavior of C/C composites. Four types of C/C composites with various pore structureswere fabricated by hot-pressing, and their fracture behavior was investigated by three pointbending tests. The fracture behavior of the C/C composites was changed from brittle one topseudo ductile one with decreasing the pore diameter. This result supported the validity of themicrospace modification concept proposed in this paper.展开更多
“大众创业、万众创新”的“双创”战略已融入众多高校课程教学改革之中。本文分析了“双创”背景下纺织工程专业选修课程《纤维复合材料》在教学中存在的问题,基于Outcome based education(OBE)理念,对该课程教学模式、教学内容等方面...“大众创业、万众创新”的“双创”战略已融入众多高校课程教学改革之中。本文分析了“双创”背景下纺织工程专业选修课程《纤维复合材料》在教学中存在的问题,基于Outcome based education(OBE)理念,对该课程教学模式、教学内容等方面的改革措施进行了探讨,提出:采用“多元立体”教学形式,构建“学科交叉”知识体系,推行“产出导向”教学模式,确立“理论与实践相结合”培养思路。希冀这些改革措施能在培养满足行业需求的专业技术人才,提高本科生教育质量和推动毕业生就业创业中发挥作用。展开更多
文摘Theoretical consideration was conducted on a relation between pore diameter and interfacialarea between pores and fibers when pores uniforinly distribute in C/C composites. It was shownthat bonding at the fiber/matrix interface apparently decreased with decreasing a pore diameter,and consequently a new idea of microspace modification concept was proposed for controllingfracture behavior of C/C composites. Four types of C/C composites with various pore structureswere fabricated by hot-pressing, and their fracture behavior was investigated by three pointbending tests. The fracture behavior of the C/C composites was changed from brittle one topseudo ductile one with decreasing the pore diameter. This result supported the validity of themicrospace modification concept proposed in this paper.
文摘“大众创业、万众创新”的“双创”战略已融入众多高校课程教学改革之中。本文分析了“双创”背景下纺织工程专业选修课程《纤维复合材料》在教学中存在的问题,基于Outcome based education(OBE)理念,对该课程教学模式、教学内容等方面的改革措施进行了探讨,提出:采用“多元立体”教学形式,构建“学科交叉”知识体系,推行“产出导向”教学模式,确立“理论与实践相结合”培养思路。希冀这些改革措施能在培养满足行业需求的专业技术人才,提高本科生教育质量和推动毕业生就业创业中发挥作用。
