Author/Authors :
Tereshin، نويسنده , , V.I. and Garkusha، نويسنده , , I.E. and Bandura، نويسنده , , A.N. and Byrka، نويسنده , , O.V. and Chebotarev، نويسنده , , V.V. and Makhlaj، نويسنده , , V.A. and Solyakov، نويسنده , , D.G. and Wuerz، نويسنده , , H.، نويسنده ,
Abstract :
Melt layer erosion of metal targets under pulsed high heat loads is discussed. Tungsten, copper, aluminum, and titanium targets were exposed to perpendicular and inclined plasma impact in the quasi-steady-state plasma accelerator QSPA Kh-50. Melt layer motion results in erosion crater formation with rather large mountains of the resolidified material at the crater edge. It is shown that macroscopic motion of the melt layer and surface cracking are the main factors responsible for tungsten erosion.
Keywords :
Plasma–materials interaction , Surface effects , erosion , Divertor
