文章以连接成形及增材制造设备及工艺课程为例,探索工科专业课程思政的教学目标、思政元素引入形式、情境设计和实施方式等,挖掘其蕴含思政元素的资源以及探索其与受教育者相契合的教育教学模式.经实施发现,开展"工程应用—实际问题—解决问题的人—职业素养的培养—价值观的树立"五步递进的项目引导式课程思政,能够使学生有效融入教学情境,学生的思想品质和专业素养也得到了明显提高.

TiC particle was synthesized by heat treatment using 3TiC/Si/0.2Al powders.The phase composition and microstructure of the material was characterized by XRD and SEM.The composition of the sample was determined by EDS.The results show that the main phase of the product is Ti3SiC2 at 1100-1200 ℃.In addition,some amounts of TiC and SiC are also synthesized.At 1300℃,Ti3SiC2 begins to decompose.When the temperature reaches 1350 ℃,Ti3SiC2 totally decomposes into TiC.The product is mainly composed of TiC and small amounts of SiC.The length side of TiC hexagonal particle is 5 μm.

SiC reinforced Ti3SiC2 composite was fabricated by in-situ reaction sintering method using 3TiC/2Si/0.2Al powder mixtures.The effect of sintering methods(hot pressing and spark plasma sintering) on the reaction products were invetigated.The phase composition and microstructure of the composite was characterized by XRD and SEM.The composition of the sample was determined by EDS.The results show that dense SiC reinforced Ti3SiC2 composite can be fabricated by two sintering methods.SiC-Ti3SiC2 nano-composite can be obtained by hot pressing.SiC grains in the spark plasma sintered product have the coarser size of 500 nm.

本文通过分析造成汇编语言难教难学的原因,提出了以案例教学为主体的汇编语言教学模式,有效的解决了汇编语言教学中的枯燥、乏味、记忆量大的问题,以理解来强化汇编学习,将扩展教育融入教学的具体实践,收到了很好的教学效果。