Atmospheric　plasma　spraying　is　regarded　as　one　of　the　most　promising　processing　methods　for　the　production　of　solid　oxide　fuel　cells　(SOFCs)　because　of　its　fast　deposition　rate　and　cost-effective　characteristic　compared　with　other　film　formation　processes.　Thermally　sprayed　ceramic　deposits　are　characterized　by　lamellar　structure　resulting　from　the　insufficient　filling　and　incomplete　wetting　of　molten　liquid　on　previously　formed　rough　coating　surfaces.　There　are　large　voids　(especially　larger　than　10　pm),　nonbonded　interface,　and　vertical　cracks　(in　particular,　in　individual　ceramic　lamella　which　are　in　the　sub-micrometer　size　range).　The　bonding　at　the　interface　between　flattened　particles　is　much　less　than　the　apparent　total　interface　area.　The　microstructure　of　plasma-sprayed　coating　can　be　significantly　influenced　by　the　feedstock.　In　this　paper,　a　Ni-Al(2)O(3)　cermet　supported　tubular　SOFC　cell　with　three　different　anodes　was　fabricated　by　thermal　spraying.　The　effect　of　the　anode　microstructure　on　the　performance　of　SOFC　was　investigated.　The　influence　of　the　anode　structure　on　the　electrode　polarization　was　examined.　The　results　showed　that　the　maximum　output　power　density　strongly　depends　on　the　anode　microstructure.　The　length　of　the　triple-phase　boundaries　(TPBs)　can　be　increased　by　decreasing　the　particle　size　of　YSZ　and　Ni　in　composite　anode.　(C)　2009　Professor　T.　Nejat　Veziroglu.　Published　by　Elsevier　Ltd.　All　rights　reserved.