In　plasma　spraying　process,　the　splats　are　building　blocks　of　the　whole　coating.　Thus,　studies　on　the　morphology　and　microstructure　of　splats　are　essential　to　coating　process　optimization　and　quality　control.　In　this　paper,　the　effect　of　substrate　temperature　(Ts)　on　the　morphologies,　grain　size　and　texture　of　plasma　sprayed　Ni　splats　collected　on　1Cr13　stainless　steel　was　investigated　by　scanning　electron　microscope　(SEM)　and　electron-backscattered　diffraction　(EBSD),　while　the　thermal　contact　resistance　between　splat　and　substrate　was　calculated　according　to　the　grain　size.　For　Ts=300　K,　the　splat　morphology　was　splashing　shape.　The　grain　size　and　thermal　contact　resistance　had　few　changes　along　the　radial　direction　of　splat,　and　their　average　values　were　2.75　μm　and　2.98×10-6　m2·K·W-1,　respectively.　On　the　contrary,　when　the　splat　was　at　Ts=573　K,　it　showed　disk-like　type.　The　grain　size　increased　linearly　along　the　radial　direction　of　splat,　and　the　values　of　central　and　peripheral　region　were　0.92　and　1.98　μm,　respectively.　Also,　the　thermal　contact　resistance　increased　gradually　along　the　radial　direction　of　splat,　and　the　values　of　central　and　peripheral　region　were　9.80×10-7　and　2.29×10-6　m2·K·W-1,　respectively.　The　splat　collected　at　both　substrate　temperatures　had　texture.　Due　to　the　higher　cooling　rate,　the　splat　at　Ts=573　K　had　stronger　texture　than　that　at　Ts=300　K.　©　Editorial　Office　of　Chinese　Journal　of　Rare　Metals.　All　right　reserved.