典型文献
The Synthetic and Mechanical Properties of a Silica Matrix Cermet Composite
文献摘要:
A cermet composite was prepared by employing thermal spraying flame onto stainless steel surfaces of (304) type. Hence 25,50% of aluminum was mixed with matrix of (10% Al2O3- SiO2). A spray system consistis of oxygen barrel, acetylene and spray gun that contains powders feeder at different spray distances (5, 10, 15, 20 and 25 cm). The thermal treatment of the samples resulting from spraying was performed at 1100 ℃ for 1.5 hr. Some physical examinations (porosity and adhesion), mechanical tests (hardness and wear rate) and Atomic Force Microscope (AFM) test were performed before and after thermal treatment. The test results showed that the best mixing rate was (50%) and the best spray distance was (15cm) where the quality of coating layer improved after thermal treatment at 1100 ℃ for 1.5 hr with a porosity ratio reduced from 11.2% to 6.6%, and adhesion strength improved with the increase in the alumina content to 50%. The results demonstrated that the best adhesion value after thermal treatment was 30.98 MPa. The hardness of coating layer increased from 45.78 to 54.88 HV; while the lowest rate of wear was at 50% of alumina with a spray distance of 15cm. Also, there was a clear improvement based on AFM within grain size, root mean square and roughness rate.
文献关键词:
中图分类号:
作者姓名:
Sufian H Humeedi;Saadoon M Abdulkareem;Salih Y Darweesh
作者机构:
Department of Physics,College of Science,Tikrit University,Tikrit,Iraq;Physics Department,College of Education,Samaraa Univer-sity,Samaraa,Iraq;Physics Department,College of Education TuzKhurmatu,Tikrit University,Tikrit,Iraq
文献出处:
引用格式:
[1]Sufian H Humeedi;Saadoon M Abdulkareem;Salih Y Darweesh-.The Synthetic and Mechanical Properties of a Silica Matrix Cermet Composite)[J].武汉理工大学学报(材料科学版)(英文版),2022(03):423-428
A类:
Cermet,consistis
B类:
Synthetic,Mechanical,Properties,Silica,Matrix,Composite,cermet,composite,was,prepared,by,employing,thermal,spraying,flame,onto,stainless,steel,surfaces,type,Hence,aluminum,mixed,matrix,Al2O3,SiO2,system,oxygen,barrel,acetylene,gun,that,contains,powders,feeder,different,distances,treatment,samples,resulting,from,performed,hr,Some,physical,examinations,porosity,adhesion,mechanical,tests,hardness,wear,Atomic,Force,Microscope,AFM,were,before,after,results,showed,best,mixing,15cm,where,quality,coating,layer,improved,ratio,reduced,strength,alumina,content,demonstrated,value,increased,HV,while,lowest,Also,there,clear,improvement,within,grain,size,root,mean,square,roughness
AB值:
0.552695
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