Recoil Implantation
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Modificação das propriedades superficiais de materiais através da implantação de cromo por recoil por meio de implantação iônica por imersão em plasma de nitrogênio / Modification of surface properties of materials by chromium recoil implantation using nitrogen plasma immersion ion implantation
The objective of this work is the modification of the surface properties of conductive materials (carbon steel) and semiconductors (silicon) using the implantation of chromium atoms, deposited on the surface of materials as thin films, using plasma immersion ion implantation. In this study we seek to understand the basic process of recoil implantation (using
Publicado em: 2007
-
2. Modification of surface properties of materials by chromium recoil implantation using nitrogen plasma immersion ion implantation / Modificação das propriedades superficiais de materiais através da implantação de cromo por recoil por meio de implantação iônica por imersão em plasma de nitrogênio
Este trabalho tem por objetivo a modificação das propriedades superficiais de materiais condutores (aço carbono) e semicondutores (silício) utilizando a implantação de átomos de cromo, depositados na superfície dos materiais sob a forma de um filme fino, por meio da implantação iônica por imersão a plasma. O estudo visa entender o processo básic
Publicado em: 2007
-
3. Estudo da formação de rastos nucleares em polímeros / Study of the Nuclear Tracks Formation in Polymers
The research in the field of material modification with ion implantation has greately improved, stimulated by technological applications in biology, medicine, electronics and other related areas. One of the correlated aspects in understanding these new materials is the identification and characterization of the damage produced by ion beam irradiation. In thi
Publicado em: 2007
-
4. Corrosion resistance enhancement of SAE 1020 steel after Chromium implantation by nitrogen ion recoil
SAE 1020 construction steel is widely used as mortar reinforcement and small machine parts, but aside good surface properties as high ductility, hardness and wear resistance, its surface is prone to severe corrosion. As it is known, Chromium in amount over 12%-13% in the Fe alloys renders them resistance to several corrosive attacks. SAE 1020 samples were re
Materials Research. Publicado em: 2005-12
-
5. Implantation of 111In in the Heusler alloys Pd2MnZ (Z=Sn,Sb,Ge,In) following heavy ion nuclear reactions: measurement of magnetic hyperfine field using PAC spectroscopy
Ion implantation of the recoil 111In nuclei following heavy ion nuclear reactions 108Pd(7Li,4n)111In and 108Pd(6Li,3n)111In has been used to implant 111In probes in the Heusler alloys Pd2MnZ(Z=Sn,Sb,Ge,In). Perturbed Angular Correlation method was used to study the hyperfine magnetic field in these alloys. Direct implantation of 111In probe nuclei was used t
Brazilian Journal of Physics. Publicado em: 2005-09
-
6. Chromium recoil implantation into SAE 1020 steel by nitrogen ion bombardment
SAE 1020 is a widely used plain carbon steel, as mortar reinforcement in buildings and small machine parts. But aside from good mechanical properties, its surface suffer from severe corrosion and high wear rate, due to modest hardness. Chromium (Cr) in excess of 12% in Fe alloys renders them resistant to several corrosive attacks. So we tried to introduce Cr
Brazilian Journal of Physics. Publicado em: 2004-12
-
7. Installation of the IMPAC technique in the Pelletron laboratory
A special target chamber for the direct production & recoil implantation of radioactive probes for perturbed angular correlation has been constructed and tested. Feasibility studies were made by reproducing the known quadrupole frequencies at 77Br and 111In probes in metallic zinc. Preliminary results were obtained on the lattice site dependence of Cd hyperf
Brazilian Journal of Physics. Publicado em: 2003-06