Joining Method of Silicon Nitride to Carbon Steel

Young Min Choi; Beyong Hwan Ryu; Jae Do Lee

doi:10.4028/www.scientific.net/KEM.287.206

Paper Titles

Fabrication and Strength Properties of LPS-SiC Ceramics
p.183

Effect of Carbon Black Addition on Reaction-Bonded Silicon Carbide Ceramics
p.189

Mechanical Properties of Synthesized Ti₃SiC₂ by Hot Pressing from TiC _x/Si Powder Mixture
p.194

Characterization of the SiC_f/SiC Composite Fabricated by the Whisker Growing Assisted CVI Process
p.200

Joining Method of Silicon Nitride to Carbon Steel
p.206

Modification of Inner Pores with Silicon Carbide Whiskers onto the Al₂O₃ Substrate by CVI Process
p.212

Effect of Inert Gas Flow Nature on SiC Microtube Synthesis
p.220

Synthesis of Porous MoSi₂ Material Fabricated by SHS (Self-Propagating High Temperature Synthesis) Process
p.226

Macro- to Atomic-Scale Tailoring of Si₃N₄ Ceramics to Enhance Properties
p.233

HomeKey Engineering MaterialsKey Engineering Materials Vol. 287Joining Method of Silicon Nitride to Carbon Steel

Joining Method of Silicon Nitride to Carbon Steel

Abstract:

We investigated the method of joining silicon nitride having on its surface a thin layer of active silicon metal to carbon steel. The active silicon layer is formed through the thermal dissociation of silicon nitride (Si3N4) into silicon (Si) and nitrogen gas (N2). The active silicon layer is directly joined to carbon steel via an induced eutectic melting reaction between the silicon and iron (Fe) found in carbon steel, or via brazing of two materials using general brazing metal such as Ag-Cu alloys. This joining process does not require the use of expensive active brazing alloys such as Ag-Cu-Ti alloys or a sputtering method designed to coat the active metals on surface of silicon nitride.