Nanofoams Response to Radiation Damage

Conference · Mon Jul 30 00:00:00 EDT 2012

OSTI ID:1048666

Fu, Engang ^[1]; Serrano De Caro, Magdalena ^[1]; Wang, Yongqiang ^[1]; Nastasi, Michael ^[2]; Zepeda-Ruiz, Luis ^[3]; Bringa, Eduardo M ^[4]; Baldwin, Jon K ^[1]; Caro, Jose A ^[1]

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1. Los Alamos National Laboratory
2. Nebraska Center for Energy Sciences Research, University of Nebraska-Lincoln, NE 68508
3. PLS, Lawrence Livermore National Laboratory, Livermore, CA 94551
4. CONICET and Inst. Ciencias Basicas, Universidad Nacional de Cuyo, Mendoza, 5500 Argentina

Conclusions of this presentation are: (1) np-Au foams were successfully synthesized by de-alloying process; (2) np-Au foams remain porous structure after Ne ion irradiation to 1 dpa; (3) SFTs were observed in irradiated np-Au foams with highest and intermediate flux, while no SFTs were observed with lowest flux; (4) SFTs were observed in irradiated np-Au foams at RT, whereas no SFTs were observed at LNT irradiation; (5) The diffusivity of vacancies in Au at RT is high enough so that the vacancies have enough time to agglomerate and thus collapse. As a result, SFTs were formed; (6) The high flux created much more damage/time, vacancies don't have enough time to diffuse or recombine. As a result, SFTs were formed.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1048666
• Report Number(s): LA-UR-12-23560; TRN: US1204242
• Resource Relation: Conference: CAARI 2012 22nd Int. Conf. on the Application of Accelerators in Research and Industry ; 2012-08-05 - 2012-08-10 ; Fort Worth, Texas, United States
• Country of Publication: United States
• Language: English

Related Subjects

Materials Science(36)
ACCELERATORS
IRRADIATION
RADIATIONS
VACANCIES