Functionally Graded Materials(FGMs)are innovative advanced quality materials in the field of composites concerning their strength,mechanical,and thermal properties.Nowadays,the modern requirement of the industry in th...Functionally Graded Materials(FGMs)are innovative advanced quality materials in the field of composites concerning their strength,mechanical,and thermal properties.Nowadays,the modern requirement of the industry in the fields of health care,aerospace,and power sectors needs the rapid evolution of new components,which allows researchers to invent new materials to satisfy the functional requirements of modern technology.Tissue engineering is one of the most concerned areas of the application of FGM in the healthcare sector,where the tailored properties of FGM play a significant role in building and growing an artificial structure that heals the damaged tissue of the body parts and meets the desired application that the part needs to perform.This paper highlights the suitability of the combination of a nano⁃structure enhanced epoxy functionally graded material,its properties,and applicability in the design of a prosthetic foot where it provides the mobility and comfort of the body part like natural tissue.The analytical study is done by designing an ANSYS model and simulating the results of equivalent stress and directional deformation.The Finite Element(FE)approach is used to optimize the output results of stress⁃strain analysis,different weight percentages of nano⁃filler are taken for performance enhancement.A comparative analysis is done with the previously established results taking carbon fiber⁃reinforced composites that offer a successful validation of the present results obtained.Furthermore,this study also provides a clear understanding of the justification of the composition considered for the effective application in the field of prosthetics field.展开更多
The segregation behavior of alloying elements X（ X = Zr,V,Cr,Mn,Mo,W,Nb,Y） on the ferrite（ 100） /TiC（ 100） interface has been investigated using first principles method,and the work of separation and interface e...The segregation behavior of alloying elements X（ X = Zr,V,Cr,Mn,Mo,W,Nb,Y） on the ferrite（ 100） /TiC（ 100） interface has been investigated using first principles method,and the work of separation and interface energy of ferrite / TiC interfaces alloyed by these elements were also analyzed. The results indicated that all these alloying additives except Y were thermodynamically favorable because of the negative segregation energy,showing that they have the tendency to segregate to the ferrite / TiC interface. When the Fe atom in the ferrite /TiC interface is replaced by Y,Zr,or Nb,the adhesive strength of the interface will be weakened due to the lower separation work,larger interfacial energy,and weaker electron effects. However,the introduction of Cr,Mo,W,Mn and V will improve the stability of the ferrite / TiC interface through strong interaction between these elements and C,and Cr-doped interface is the most stable structure. Therefore,the Cr,Mo,W,Mn and V in ferrite side of the interface can effectively promote ferrite heterogeneous nucleation on TiC surface to form fine ferrite grain.展开更多
基金Sponsored by the Science and Technology Department,Government of Ddisha(Grant No.3724/ST,Bhubaneswar,dt.14.09.2022).
文摘Functionally Graded Materials(FGMs)are innovative advanced quality materials in the field of composites concerning their strength,mechanical,and thermal properties.Nowadays,the modern requirement of the industry in the fields of health care,aerospace,and power sectors needs the rapid evolution of new components,which allows researchers to invent new materials to satisfy the functional requirements of modern technology.Tissue engineering is one of the most concerned areas of the application of FGM in the healthcare sector,where the tailored properties of FGM play a significant role in building and growing an artificial structure that heals the damaged tissue of the body parts and meets the desired application that the part needs to perform.This paper highlights the suitability of the combination of a nano⁃structure enhanced epoxy functionally graded material,its properties,and applicability in the design of a prosthetic foot where it provides the mobility and comfort of the body part like natural tissue.The analytical study is done by designing an ANSYS model and simulating the results of equivalent stress and directional deformation.The Finite Element(FE)approach is used to optimize the output results of stress⁃strain analysis,different weight percentages of nano⁃filler are taken for performance enhancement.A comparative analysis is done with the previously established results taking carbon fiber⁃reinforced composites that offer a successful validation of the present results obtained.Furthermore,this study also provides a clear understanding of the justification of the composition considered for the effective application in the field of prosthetics field.
基金financially sponsored by National Natural Science Foundation of China(51304053)
文摘The segregation behavior of alloying elements X（ X = Zr,V,Cr,Mn,Mo,W,Nb,Y） on the ferrite（ 100） /TiC（ 100） interface has been investigated using first principles method,and the work of separation and interface energy of ferrite / TiC interfaces alloyed by these elements were also analyzed. The results indicated that all these alloying additives except Y were thermodynamically favorable because of the negative segregation energy,showing that they have the tendency to segregate to the ferrite / TiC interface. When the Fe atom in the ferrite /TiC interface is replaced by Y,Zr,or Nb,the adhesive strength of the interface will be weakened due to the lower separation work,larger interfacial energy,and weaker electron effects. However,the introduction of Cr,Mo,W,Mn and V will improve the stability of the ferrite / TiC interface through strong interaction between these elements and C,and Cr-doped interface is the most stable structure. Therefore,the Cr,Mo,W,Mn and V in ferrite side of the interface can effectively promote ferrite heterogeneous nucleation on TiC surface to form fine ferrite grain.
