Solid-state joining

Dissimilar metal joints would likely require solid state joining process development and... 

Benefits of solid-state joining of gold include ... 

Solid-state joining is limited in application to specific combinations of materials that provide specific combinations of mechanical or diffusion characteristics. 

Of all the joining methods, solid-state joining is the least tolerant to poor mating of the joint surfaces. 

Joint surfaces need to be scrupulously clean because solid-state joining is a fluxless process. 

Inertia (friction) welding, a solid state joining method, has been used to join refractory metal alloys to Ni-base superalloys at the Edison Welding Institute (EWI). Successful material combinations of Mo-47.5Re or T-111 to Mar M-247 or Hastelloy X were joined in air with no adverse effects. However, detrimental metallurgical issues found in these joints included the production of small Interdiffusion layers and intergranular cracking. A complete record of the results can be found in Reference 9- 82. 

Solid-State Welding. Sohd-state welding comprises a group of welding processes wherein a bond is made between two base materials upon the apphcation of pressure at a temperature below the soHdus of the base materials (Table 1). Interlayers are sometimes used. By joining materials in the sohd state, many of the difficulties of the fusion processes are avoided. 

Regnault investigated the vapour-pressures of water and benzene, both in the liquid and solid states, and represented his results graphically. He con-. eluded that the curves for the liquid and solid joined at the melting-point, and gave a continuous curve. This was shown theoretically to be incorrect. by Ivirchhoff (1858), who proved, by a method to be described later, that the... 

Arnold M. Guloy was born in Manila, in the Philippines. After graduation from Manila Science High School, he studied chemistry and received his BS degree at the University of the Philippines, Quezon City. He received his Ph.D. in Inorganic Chemistry from Iowa State University under the supervision of Professor John D. Corbett in 1992. After an IBM Postdoctoral fellowship at the IBM Research Center at York-town Heights, he joined the faculty at the University of Houston in 1994, where he is currently an Associate Professor. He has over 70 publications with emphasis on exploratory research in solid state... 

Huffman in the X-ray Molecular Structure Center. From 1992 to 1994 he joined the research group of Professor John D. Corbett at Iowa State University where he pursued synthetic solid-state chemistry research exploring structure/property relationships. In 1994 he joined the faculty of the Department of Chemistry at North Carolina State University where he is a full professor of Inorganic Chemistry pursuing synthetic, structural and mechanistic investigations in inorganic condensed matter. He has published more than 70 research papers and has several patented discoveries. He received an NSF CAREER award in 1995, was named a Cottrell Scholar of the Research Corporation in 1997, and received a Sigma Xi Research Award in 1999. 

Laboratory, where he worked with John Longo and Allan Jacobson on the synthesis and characterization of mixed metal oxides and their application in heterogeneous catalysis. He joined the chemistry faculty of Northwestern University in 1984 where he is now Professor of Chemistry and an active member of the Center for Catalysis and Surface Science and the Materials Research Science and Engineering Center. Kenneth Poeppelmeier has published over 250 research papers and supervised approximately 40 Ph.D. students in the area of inorganic and solid state chemistry. He is a Fellow of the American Association for the Advancement of Science (AAAS) and the Japan Society for the Promotion of Science (JSPS) and has been a Lecturer for the National Science Council of Taiwan (1991), Natural Science Foundation of China (1999) and Chemistry Week in China (2004), and more recently an Institut Universitaire de France Professor (2003). 

A spectacular solid-state [2 + 2] dimerization reaction of Cso was discovered by Komatsu et al.[ul When a mixture of C6o and potassium cyanide is intimately ground by high-speed vibration milling, an unusual addition-elimination reaction involving the cyanide adduct 37 ensues which joins two ful-lerene moieties to afford the Q20 dimer 38 (Scheme 10). Presumably, the cyclodimerization involves... 

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