Accession Number : AD0427056


Title :   INVESTIGATION OF BONDING IN OXIDE-FIBER (WHISKER) REINFORCED METALS.


Descriptive Note : Quarterly rept. no. 5, 1 July-30 Sep 63,


Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV


Personal Author(s) : Sutton,Willard H


Report Date : 30 Sep 1963


Pagination or Media Count : 33


Abstract : Special binary alloys of pure Ni containing 1 at.-% of Al, Cu, In, Ti, Zr and Cr were prepared and were used in sessile drop experiments, which were conducted at temperatures ranging between 1460 and 1510 C and at pressures of 5 x 10 to the -5th power Torr. It was found that the additions of Al, Cu, and In had little effect in lowering the contact angle between pure Ni and single crystal substrates of alpha-Al2O3. However, the Ti, Zr and Cr additions, which reacted chemically with the substrate, lowered the contact angle significantly. Future studies are planned which will study the effect of interfacial reactions on the bond strength between the Ni/Ni alloys and alpha-Al2O3. (Author)


Descriptors :   *CERAMIC FIBERS , BONDING , SURFACE PROPERTIES , OXIDES , NICKEL , ZIRCONIUM ALLOYS , SCIENTIFIC RESEARCH , HYPOBARIC CONDITIONS , SCIENTIFIC RESEARCH , DROPS , ADHESION , SAPPHIRE , SURFACE ACTIVE SUBSTANCES , THERMOCHEMISTRY


Distribution Statement : APPROVED FOR PUBLIC RELEASE