caa a22 4500 388021624 CHVBK 20180307124926.0 cr unu---uuuuu 161130e199802 xx s 000 0 eng 10.1557/JMR.1998.0045 doi S0884291400042825 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0045 Influence of Fe impurity in nitridation of Si + B4C green compact [Elektronische Daten] The addition of B4C powder retarded the nitridation of the silicon powder green body by the formation of a borosilicate layer in interfaces between Si grains. The viscous layers hindered the SiO formation and the Si and N diffusion. Despite the presence of borosilicate layers, the Fe impurity in the green body still promoted the Si nitridation process by the formation of fluid iron silicide and the promotion of the B4C conversion to BN in gaps or holes in the viscous borosilicate layers. The addition of 5% H2 in the N2 atmosphere accelerated the Si + B4C nitridation, where the hydrogen acted as an oxygen getter, thus reducing the amount of glassy borosilicate in the interface. Copyright © Materials Research Society 1998 Liu Dangrong R. Ford Research Laboratory, Ford Motor Company, 20000 Rotunda Drive, Dearborn, Michigan 48121 Shinozaki Samuel Ford Research Laboratory, Ford Motor Company, 20000 Rotunda Drive, Dearborn, Michigan 48121 Miyata Motoyuki Hitachi Research Laboratory, Hitachi Ltd., 1-1 Omika-Cho, 7-Chome, Hitachi-shi, Ibaraki-ken, 319-12 Japan Yasutomi Yoshiyuki Hitachi Research Laboratory, Hitachi Ltd., 1-1 Omika-Cho, 7-Chome, Hitachi-shi, Ibaraki-ken, 319-12 Japan Journal of Materials Research Cambridge University Press 13/2(1998-02), 329-342 0884-2914 13:2<329 1998 13 JMR https://doi.org/10.1557/JMR.1998.0045 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0045 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Dangrong R. Ford Research Laboratory, Ford Motor Company, 20000 Rotunda Drive, Dearborn, Michigan 48121 NATIONALLICENCE 700 1- Shinozaki Samuel Ford Research Laboratory, Ford Motor Company, 20000 Rotunda Drive, Dearborn, Michigan 48121 NATIONALLICENCE 700 1- Miyata Motoyuki Hitachi Research Laboratory, Hitachi Ltd., 1-1 Omika-Cho, 7-Chome, Hitachi-shi, Ibaraki-ken, 319-12 Japan NATIONALLICENCE 700 1- Yasutomi Yoshiyuki Hitachi Research Laboratory, Hitachi Ltd., 1-1 Omika-Cho, 7-Chome, Hitachi-shi, Ibaraki-ken, 319-12 Japan NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/2(1998-02), 329-342 0884-2914 13:2<329 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge