Multilayer　metal-ceramic　gradient　composite　pipes　were　extruded　through　simultaneous　extrusion　of　different　types　of　particulate　pastes　composed　of　different　proportions　of　stainless　steel　(316L)　to　partially　yttria-stabilized　zirconia　(PSZ)　with　binder　by　means　of　multi-billet　extrusion,　then　were　solidified　utilizing　gas-pressure　sintering.　The　multilayer　composite　pipes　have　sound　transitional　boundaries　between　adjacent　layers.　Because　of　the　composition　gradient,　transitional　boundaries　between　adjacent　layers　possess　good　bonding,　and　no　interfacial　decohesion　occurs　during　flexural　and　compressive　loading,　which　shows　relatively　high　bonding　strength　between　adjacent　layers.　In　summary,　multilayer　metal-ceramic　gradient　composite　pipe　with　good　interfacial　bonding　between　adjacent　layers　can　be　fabricated　utilizing　multi-billet　extrusion　and　sintering.　©　2004　Elsevier　B.V.　All　rights　reserved.