000191104 001__ 191104
000191104 005__ 20180913062209.0
000191104 0247_ $$2doi$$a10.1557/jmr.2013.252
000191104 022__ $$a0884-2914
000191104 02470 $$2ISI$$a000326436500003
000191104 037__ $$aARTICLE
000191104 245__ $$aNanoindentation cracking in gallium arsenide: Part I. In situ SEM nanoindentation
000191104 260__ $$aNew York$$bCambridge Univ Press$$c2013
000191104 269__ $$a2013
000191104 300__ $$a14
000191104 336__ $$aJournal Articles
000191104 520__ $$aThe nanoindentation fracture behavior of gallium arsenide (GaAs) is examined from two perspectives in two parent papers. The first paper (part I) focuses on in situ nanoindentation within a scanning electron microscope (SEM) and on fractographic observations of cleaved cross-sections of indented regions to investigate the crack field under various indenter geometries. In the second parent paper (part II), cathodoluminescence and transmission electron microscopy are used to investigate the relationship between dislocation and crack fields. The combination of instrumented in situ scanning electron microscopy nanoindentations and cleavage cross-sectioning allows us to establish a detailed map of cracking in the indented region and cracking kinetics for conical and wedge indenter shapes. For wedge nanoindentations, the evolution of the half-penny crack size with the indentation load is interpreted using a simple linear elastic fracture model based on weight functions. Fracture toughness estimates obtained by this technique fall within the range of usual values quoted for GaAs.
000191104 700__ $$aWasmer, Kilian$$uEmpa, Swiss Labs Mat Sci & Technol, Lab Adv Mat Proc, CH-3602 Thun, Switzerland
000191104 700__ $$aPouvreau, Cedric$$uEmpa, Swiss Labs Mat Sci & Technol, Lab Mech Mat & Nanostruct, CH-3602 Thun, Switzerland
000191104 700__ $$aBreguet, Jean-Marc$$uEcole Polytech Fed Lausanne, Lab Mech Syst Design, CH-1015 Lausanne, Switzerland
000191104 700__ $$aMichler, Johann$$uEmpa, Swiss Labs Mat Sci & Technol, Lab Mech Mat & Nanostruct, CH-3602 Thun, Switzerland
000191104 700__ $$aSchulz, Daniel
000191104 700__ $$aGiovanola, Jacques Henri$$uEcole Polytech Fed Lausanne, Lab Mech Syst Design, CH-1015 Lausanne, Switzerland
000191104 773__ $$j28$$k20$$q2785-2798$$tJournal Of Materials Research
000191104 909C0 $$0252350$$pLCSM$$xU10352
000191104 909CO $$ooai:infoscience.tind.io:191104$$particle
000191104 937__ $$aEPFL-ARTICLE-191104
000191104 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000191104 980__ $$aARTICLE