@inproceedings{30aa1671500346cf9c3b48e5cea8e6b7,
title = "Observation on Ni-enhanced W grain growth in W-wire bundle model",
abstract = "The effect of Ni additive on the recrystallization and grain growth in W-wires has been investigated in order to explain the role of nickel in the activated sintering of W, because both phenomena are comparable to each other, being principally diffusion-controlled and greatly influenced by the presence of Ni. The experiment was carried out in W-wires bundle model, in which the initial state of nickel could be appropriately controlled by arranging the Ni-coated W-wire together with non-coated ones. The recrystallization and grain growth processes were observed and analyzed on the basis of geometrical relation between Ni-source and relevant W-wires. The development of recrystallization front depends on the Ni- diffusion path and rate. Nickel diffuses fast into W-wires through high diffusivity paths such as surface and grain boundary, inducing recrystallization at relatively low temperature. The apparent diffusivity of Ni in W-wire estimated by measuring the migration rate of recrystallization front is about 10-9 cm/s, having two orders higher than the data found in literature. The role of nickel in W is further discussed.",
author = "Moon, \{In Hyung\} and Kim, \{Ki Youl\} and Oh, \{Sung Tag\} and Lee, \{Jeong Keun\} and Suk, \{Myung Jin\} and Kim, \{Young Do\}",
year = "1992",
language = "English",
isbn = "187895427X",
series = "Advances in Powder Metallurgy",
publisher = "Publ by Metal Powder Industries Federation",
pages = "159--170",
booktitle = "Properties of Emerging P/M Materials",
note = "Proceedings of the 1992 Powder Metallurgy World Congress. Part 1 (of 9) ; Conference date: 21-06-1992 Through 26-06-1992",
}