Zobrazeno 1 - 10
of 523
pro vyhledávání: '"Michael Nastasi"'
Publikováno v:
Materials Research Letters, Vol 9, Iss 3, Pp 155-161 (2021)
This manuscript reports a novel process of high-temperature laser shock peening (HTLSP) for surface strengthening of single-crystal ceramics such as sapphire and reveals its fundamental mechanisms. HTLSP at 1200°C can induce a high compressive resid
Externí odkaz:
https://doaj.org/article/2aab60d72dee4576920076f13cd388d5
Autor:
Qing Su, Shinsuke Inoue, Manabu Ishimaru, Jonathan Gigax, Tianyao Wang, Hepeng Ding, Michael J. Demkowicz, Lin Shao, Michael Nastasi
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract Despite recent interest in amorphous ceramics for a variety of nuclear applications, many details of their structure before and after irradiation/implantation remain unknown. Here we investigated the short-range order of amorphous silicon ox
Externí odkaz:
https://doaj.org/article/4a3337f3b56f48c7b34ab944f1f5b3c9
Publikováno v:
Crystals, Vol 9, Iss 3, p 147 (2019)
The management of irradiation defects is one of key challenges for structural materials in current and future reactor systems. To develop radiation tolerant alloys for service in extreme irradiation environments, the Fe self-ion radiation response of
Externí odkaz:
https://doaj.org/article/f6a93479a3f34275845c2a31661cfc83
Publikováno v:
Materials, Vol 12, Iss 1, p 93 (2018)
The management of radiation defects and insoluble He atoms represent key challenges for structural materials in existing fission reactors and advanced reactor systems. To examine how crystalline/amorphous interface, together with the amorphous consti
Externí odkaz:
https://doaj.org/article/b727b3ce80d042c6a6d06bb261ce6249
Autor:
Beatrice Fraboni, Alessandra Scidà, Piero Cosseddu, Yongqiang Wang, Michael Nastasi, Silvia Milita, Annalisa Bonfiglio
Publikováno v:
Science and Technology of Advanced Materials, Vol 16, Iss 6 (2015)
We report on the effects of low energy ion implantation on thin films of pentacene, carried out to investigate the efficacy of this process in the fabrication of organic electronic devices. Two different ions, Ne and N, have been implanted and compar
Externí odkaz:
https://doaj.org/article/b56da3f79daa4b9596fee2369dbd24b8
Publikováno v:
Metals, Vol 6, Iss 11, p 261 (2016)
Temperature dependent He-irradiation-induced ion-beam mixing between amorphous silicon oxycarbide (SiOC) and crystalline Fe was examined with a transmission electron microscope (TEM) and via Rutherford backscattering spectrometry (RBS). The Fe marker
Externí odkaz:
https://doaj.org/article/c2ae91319d45401b8cfd8e05b8072c9c
Autor:
Yanwen Zhang, Natale J. Ianno, Ryusuke Nakamura, George Peterson, Michael Nastasi, Manabu Ishimaru, William J. Weber
Publikováno v:
Journal of the European Ceramic Society. 42:376-382
Amorphous boron carbide (a-BxC) networks consist of light elements, and their low atomic scattering factors makes structural analysis by x-ray diffraction difficult. Electron diffraction has an advantage of detecting the light elements, because of th
Publikováno v:
Journal of Materials Science. 56:19216-19227
The solid-state joining of oxide-dispersion-strengthened (ODS) austenitic steels was achieved using a pulsed electric current joining (PECJ) process. Microstructures of the austenitic grain structures and oxide dispersions in the joint areas were cha
Publikováno v:
Materials Research Letters, Vol 9, Iss 3, Pp 155-161 (2021)
This manuscript reports a novel process of high-temperature laser shock peening (HTLSP) for surface strengthening of single-crystal ceramics such as sapphire and reveals its fundamental mechanisms. HTLSP at 1200°C can induce a high compressive resid
Autor:
Yongfeng Lu, Zhipeng Wu, Yan Chen, Xiang Zhang, Fei Wang, Michael Nastasi, Bai Cui, Yifei Hao, Xia Hong, Xueliang Yan
Publikováno v:
Journal of the American Ceramic Society. 104:1271-1280