Metals and Alloys

 

1. Vacancy clustering and its dissociation process in electroless deposited copper films studied by monoenergetic positron beams

A. Uedono, Y. Yamashita, T. Tsutsui, Y. Dordi, S. Li, N. Oshima, and R. Suzuki

J. Appl. Phys. 111, 104506 (2012). 

 

2. Niobium aggregation and vacancylike defect evolution in nanostructured Nb-doped Mg: Their role in the kinetics of the hydride-to-metal phase transformation

C. Macchi et al.

Phys. Rev. B 85, 214117 (2012).  

 

3. Vacancy-like defects associated with icosahedral phase in Mg–Y–NdZr alloys modified by the addition of Zn

J. Čížek, M. Vlček, B. Smola, I. Stulíková, I. Procházka, R. Kužel, A. Jäger, P. Lejček

Scripta Materialia 66, 630-633 (2012).

 

4. Positron annihilation study of proton-irradiated reactor pressure vessel steels

Xiangbing Liu, Rongshan Wang, Ai Ren, Ping Huang, Yichu Wu, Jing Jiang, Chonghong Zhang, Xitao Wang

Radiation Physics and Chemistry, In Press, Corrected Proof, Available online May 2012.

 

5. Study of vacancy-type defects by positron annihilation in ultrafine-grained aluminum severely deformed at room and cryogenic temperatures

L.H. Su, C. Lu, L.Z. He, L.C. Zhang, P. Guagliardo, A.K. Tieu, S.N. Samarin, J.F. Williams, H.J. Li

Acta Materialia 60, 4218-4228 (2012).

 

6. Positron annihilation study of irradiated China domestic A508-3 steels

Xiangbing Liu, Rongshan Wang, Ai Ren, Xitao Wang, Yichu Wu, Chonghong Zhang, Ping Huang, Jing Jiang, Shuxiao Li

Procedia Engineering 27, 1618-1625 (2012).

 

7. Post-irradiation annealing behavior of microstructure and hardening of a reactor pressure vessel steel studied by positron annihilation and atom probe tomography

A. Kuramoto, T. Toyama, T. Takeuchi, Y. Nagai, M. Hasegawa, T. Yoshiie, Y. Nishiyama

Journal of Nuclear Materials 425, 65-70 (2012).

 

8. Positron annihilation study of the Fermi surface of Ni2MnGa

T D Haynes, R J Watts, J Laverock, Zs Major, M A Alam, J W Taylor, J A Duffy and S B Dugdale

New J. Phys. 14, 035020 (2012).

 

Semiconductors

 

1. Positron annihilation studies of fluorine-vacancy complexes in Si and SiGe

C. J. Edwardson, P. G. Coleman, H. A. W. El Mubarek, and A. S. Gandy

J. Appl. Phys. 111, 073510 (2012). 

 

2. Vacancy-induced room-temperature ferromagnetism in Ga–TiO2

N.N. Bao, J.B. Yi, H.M. Fan, X.B. Qin, P. Zhang, B.Y. Wang, J. Ding, S. Li

Scripta Materialia 66, 821-824 (2012).

 

 

3. Time-resolved photoluminescence, positron annihilation, and Al0.23Ga0.77N/GaN heterostructure growth studies on low defect density polar and nonpolar freestanding GaN substrates grown by hydride vapor phase epitaxy

S. F. Chichibu, K. Hazu, Y. Ishikawa, M. Tashiro, H. Namita, S. Nagao, K. Fujito, and A. Uedono

J. Appl. Phys. 111, 103518 (2012). 

 

4. Lanthanum-doped ZnO quantum dots with greatly enhanced fluorescent quantum yield  

Li-Wei Sun, Han-Qiao Shi, Wan-Nan Li, Hong-Mei Xiao, Shao-Yun Fu, Xing-Zhong Cao, and Zhuo-Xin Li

J. Mater. Chem. 22, 8221 (2012). 

 

5. Positron annihilation characterization of nanocrystalline ZnO

Mahuya Chakrabarti, D. Jana, D. Sanyal

Vacuum, In Press, Accepted Manuscript, Available online June 2012.

 

Glasses, Ceramics and Oxides

 

1. Characteristic free volume change of bulk metallic glasses

Qiang Hu, Xie-Rong Zeng, and M. W. Fu

J. Appl. Phys. 111, 083523 (2012). 

 

2. Doping Effect of Nb5+ on the Microstructure and Defects of LiFePO4  

Peixin Zhang, Yanyi Wang, Muchong Lin, Dongyun Zhang, Xiangzhong Ren, and Qiuhua Yuan

J. Electrochem. Soc. 159, A402 (2012).

 

3. PAL signature of physical ageing in chalcogenide glasses

Adam Ingram, Andrzej Kozdras, Oleh Shpotyuk and Roman Golovchak

physica status solidi (b) 249, 1017–1019 (2012).

 

4. Positron annihilation in latex-templated macroporous silica films: pore size and ortho-positronium escape

L Liszkay, F Guillemot, C Corbel, J-P Boilot, T Gacoin, E Barthel, P Pérez, M-F Barthe, P Desgardin, P Crivelli, U Gendotti and A Rubbia

New J. Phys. 14, 065009 (2012).

 

5. Positron Annihilation Lifetime Studies of Nb-Doped TiO2, SnO2, and ZrO2

Paul R. Guagliardo, Eric R. Vance, Zhaoming Zhang, Joel Davis, Jim F. Williams and Sergey N. Samarin

Journal of the American Ceramic Society 95, 1727–1731 (2012).

 

6. Enhanced catalytic activity induced by defects in mesoporous ceria nanotubes

Guomin Hua, Lide Zhang, Guangtao Fei, and Ming Fang

J. Mater. Chem. 22, 6851 (2012) 

 

7. High temperature annealing of Xe implanted ZrC0.95O0.05 investigated by RBS, TEM and PAS-DBS

G. Gutierrez, N. Toulhoat, N. Moncoffre, Y. Pipon, N. Djourelov, A. Maître, M. Gendre, P. Nedelec

Progress in Nuclear Energy 57, 57-61 (2012).

 

8. Probing the local structural changes across the amorphous to crystalline transition in iron phosphate glass: Positron annihilation and micro Raman studies

M. Premila, S. Abhaya, R. Rajaraman, T.R. Ravindran, G. Amarendra, C.S. Sundar

Journal of Non-Crystalline Solids 358, 1014-1018 (2012).

 

9. Structural transition in rare earth doped zirconium oxide: A positron annihilation study

Keka Chakraborty, Abhijit Bisoi, Bichitra Nandi Ganguly, Vinita Grover, Farheen Nasir Sayed, A.K. Tyagi

Materials Research Bulletin, In Press, Corrected Proof, Available online June 2012.

 

10. Defects in TiO2 films on p+-Si studied by positron annihilation spectroscopy

P.G. Coleman, C.J. Edwardson, Anbang Zhang, Xiangyang Ma, Xiaodong Pi, Deren Yang

Materials Science and Engineering: B 177, 625-628 (2012).

 

11. n-Heptane adsorption and desorption on porous silica observed by positron annihilation lifetime spectroscopy

Radosław Zaleski, Waldemar Dolecki, Agnieszka Kierys, Jacek Goworek

Microporous and Mesoporous Materials 154, 142-147 (2012).

 

12. Bulk metallic glass formation: The positive effect of hydrogen

Yanqing Su, Fuyu Dong, Liangshun Luo, Jingjie Guo, Baoshuai Han, Zhuoxi Li, Baoyi Wang, Hengzhi Fu

Journal of Non-Crystalline Solids, In Press, Corrected Proof, Available online June 2012.

 

Polymers

 

1. Physicochemical testing of free films containing non-soluble components

É. Bölcskei, G. Regdon Jr., K. Süvegh, T. Marek and K. Pintye-Hódi

Polymers for Advanced Technologies 23, 1020–1024 (2012).

 

2. The interaction in sorbitol-plasticized starch bionanocomposites via positron annihilation lifetime spectroscopy and small angle X-ray scattering

Huihua Liu, Deeptangshu Chaudhary, Jason Roberts, Ryan Weed, James Sullivan, Stephen Buckman

Carbohydrate Polymers 88, 1172-1176 (2012).

 

3. Tuning microcavities in thermally rearranged polymer membranes for CO2 capture  

S. H. Han et al.

Phys. Chem. Chem. Phys. 14, 4365 (2012). 

 

4. Tracking of the viability of Stenotrophomonas maltophilia bacteria population in polyvinylalcohol nanofiber webs by positron annihilation lifetime spectroscopy

Attila Vajdai, Barnabás Szabó, Károly Süvegh, Romána Zelkó, Gabriella Újhelyi

International Journal of Pharmaceutics 429, 135-137 (2012).

 

5. Real time positron annihilation lifetime spectroscopy for the detection of the hydrocolloid gel-film transition of polymers

Barnabás Szabó, Károly Süvegh, Romána Zelkó

Polymer Testing, 31, 546-549 (2012).

 

6. Positron annihilation lifetime spectroscopy and diffusion studies of large molecule penetrants into alkyd resins

Shelia A. Ward, Richard A. Pethrick

Progress in Organic Coatings, In Press, Corrected Proof, Available online June 2012.

 

7. Positron age-momentum correlation studies of free volumes in toughened cyanate resin networks

Zeng Minfeng, Sun Xudong, Lu Cuiyun, Li Zhuoxin, Wang Baoyi, Qi Chenze

Radiation Physics and Chemistry 81, 628-631 (2012).

 

8. Free volume and mass transport in polymer nanocomposites

G. Choudalakis, A.D. Gotsis

Current Opinion in Colloid & Interface Science 17, 132-140 (2012).

 

9. On the relationships between guest molecular dynamics and free volume in a series of small molecular and polymer glass-formers

H. Švajdlenková, O. Šauša, M. Iskrová-Miklošovičová, V. Majerník, J. Krištiak, J. Bartoš

Chemical Physics Letters 539–540, 39-44 (2012).

 

10. New insights into the microencapsulation properties of sodium caseinate and hydrolyzed casein

S. Drusch, Y. Serfert, A. Berger, M.Q. Shaikh, K. Rätzke, V. Zaporojtchenko, K. Schwarz

Food Hydrocolloids 27, 332-338 (2012).

 

11. Cellulose esters for forward osmosis: Characterization of water and salt transport properties and free volume

Sui Zhang, Renwu Zhang, Y.C. Jean, D.R. Paul, Tai-Shung Chung

Polymer 53, 2664-2672 (2012).

 

12. A combined experiment and molecular dynamics simulation study of hydrogen bonds and free volume in nitrile-butadiene rubber/hindered phenol damping mixtures  

Bo Qiao, Xiuying Zhao, Dongmei Yue, Liqun Zhang, and Sizhu Wu

J. Mater. Chem. 22, 12339 (2012).

 

13. Information on individual interfaces in ternary polymer blends from positron annihilation lifetime studies

D. Meghala, P. Ramya, T. Pasang, H. B. Ravikumar, and C. Ranganathaiah

AIP Conf. Proc. 1447, 641 (2012)

 

14. Free volume dilatation in polymers by ortho-positronium

P. Winberg, M. Eldrup, and F. H. J. Maurer

J. Chem. Phys. 136, 244902 (2012). 

 

15. Electrical conductivity and electric modulus of stable Kevlar® fiber loaded HAF/NBR rubber composite

M. H. Abd-El Salam and A. M. Ismail

Journal of Applied Polymer Science 124, 1359–1365 (2012).

 

16. Crack initiation of natural rubber under high temperature fatigue loading

Gengsheng Weng, Guangsu Huang, Hangxin Lei, Liangliang Qu, Peng Zhang, Yijing Nie and Jingrong Wu

Journal of Applied Polymer Science 124, 4274–4280 (2012).

 

17. Calcium phosphate incorporated poly(ethylene oxide)-based nanocomposite electrolytes for lithium batteries. I. Ionic conductivity and positron annihilation lifetime spectroscopy studies

A. Manuel Stephan, T. Prem Kumar, Sabu Thomas, P. Selvin Thomas, Roberta Bongiovanni, Jijeesh R. Nair and N. Angulakshmi

Journal of Applied Polymer Science 124, 3245–3254 (2012).

 

18. Effect of adding feldspar on free volume properties of crosslinked polyester studied by positron annihilation lifetime spectroscopy

E. Gomaa and J. N. Asaad

Journal of Applied Polymer Science 124, 3142–3146 (2012).

 

19. Positron annihilation and relaxation dynamics from dielectric spectroscopy: poly(vinylmethylether)

J Bartoš, M Iskrová-Miklošovičová, D Cangialosi, A Alegría, O Šauša, H Švajdlenková, A Arbe, J Krištiak and J Colmenero

J. Phys.: Condens. Matter 24, 155104 (2012).

 

20. A nanostructural investigation of glassy gelatin oligomers: molecular organization and interactions with low molecular weight diluents

M Roussenova, J Enrione, P Diaz-Calderon, A J Taylor, J Ubbink and M A Alam

New J. Phys. 14, 035016 (2012).

 

21. Polymer electrolyte-graphene composites: Conductivity peaks and reasons thereof

Puja Diwan, Stephan Harms, Klaus Raetzke, Amita Chandra

Solid State Ionics 217, 13-18 (2012).

 

Positron Physics

 

1. Effect of positron–atom interactions on the annihilation gamma spectra of molecules

D G Green, S Saha, F Wang, G F Gribakin and C M Surko

New J. Phys. 14, 035021 (2012).

 

2. Effect of positron–atom interactions on the annihilation gamma spectra of molecules

D G Green, S Saha, F Wang, G F Gribakin and C M Surko

New J. Phys. 14, 035021 (2012).

 

3. Electron-positron plasma drop formed by ultra-intense laser pulses

Inga Kuznetsova and Johann Rafelski

Phys. Rev. D 85, 085014 (2012).

 

4. Analysis of electron-positron wavefunctions in the nuclear-electronic orbital framework

Chet Swalina, Michael V. Pak, and Sharon Hammes-Schiffer

J. Chem. Phys. 136, 164105 (2012). 

 

Positronium Physics

 

1. Infrared, Raman, 1H NMR, thermal and positron annihilation lifetime studies of Pb(II), Sn(II), Sb(III), Bi(III)-barbital complexes

Moamen S. Refat, T. Sharshar

Journal of Molecular Structure 1016, 140-146 (2012).

 

2. Solid Eu(III) complexes studied by positron annihilation, optical and Mössbauer spectroscopies: Insights on the positronium formation mechanism

F. Fulgęncio, F.C. de Oliveira, F.F. Ivashita, A. Paesano, D. Windmöller, A. Marques-Netto, W.F. Magalhăes, J.C. Machado

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 92, 415-418 (2012).

 

3. The glass transition and the distribution of voids in room-temperature ionic liquids: A molecular dynamics study

N. C. Forero-Martinez, R. Cortes-Huerto, and P. Ballone

J. Chem. Phys. 136, 204510 (2012). 

 

4. Free volume and phase transitions of 1-butyl-3-methylimidazolium based ionic liquids from positron lifetime spectroscopy  

Yang Yu et al.

Phys. Chem. Chem. Phys. 14, 6856 (2012). 

 

5. Positronium formation studies in solid molecular complexes: Triphenylphosphine oxide–triphenylmethanol

F.C. Oliveira, A.M.L. Denadai, F.H. Fulgęncio, W.F. Magalhăes, A.F.C. Alcântara, D. Windmöller, J.C. Machado

Journal of Molecular Structure 1017, 84-89 (2012).

 

6. Dynamics of water in Mg2+/Al3+/Si4+ saponite clay

S. Mitra, S. A. Prabhudesai, V. K. Sharma, P. Maheshwari, D. Chakrabarty, M. A. Vicente, J. Peter Embs, and R. Mukhopadhyay

AIP Conf. Proc. 1447, 935 (2012). 

 

Developmental work

 

1. Silicon as an unconventional detector in positron emission tomography

Neal Clinthorne, Karol Brzezinski, Enrico Chesi, Eric Cochran, Milan Grkovski, Borut Grošičar, Klaus Honscheid, Sam Huh, Harris Kagan, Carlos Lacasta, Vladimir Linhart, Marko Mikuž, D. Shane Smith, Vera Stankova, Andrej Studen, Peter Weilhammer, Dejan Žontar

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, In Press, Corrected Proof, Available May 2012.

 

2. A new technique for 3D gamma-ray imaging: Conceptual study of a 3D camera

C. Domingo-Pardo

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 675, 123-132 (2012).

 

3. SIMION simulation of a slow pulsed positron beam

Xu Hong-Xia, Liu Jian-Dang, Gao Chuan-Bo, Weng Hui-Min  and Ye Bang-Jiao

Chinese Phys. C 36, 251 (2012).