Glass　and　glass-ceramic　are　one　of　the　key　sealing　materials　for　solid　oxide　fuel　cells　(SOFCs)　and　they　need　to　meet　stringent　requirements　for　long-term　operation　at　high　temperatures.　Here,　we　report　for　the　first　time　the　incorporation　of　aluminum　nitride　(AlN)　dopant　into　borosilicate　glasses　and　glass-ceramics　so　as　to　tailor　their　basic　properties　and　sealing　performance.　The　results　show　the　AlN-doped　glass-ceramics　exhibit　remarkably　enhanced　thermal　stability　and　chemical　compatibility　when　adhering　to　Y2O3-ZrO2　electrolyte.　The　electrical　conductivity　is　also　significantly　reduced　by　the　AlN　doping,　and　the　conductivity　of　15　wt.%　AlN-doped　glass-ceramic　is　nearly　two　orders　of　magnitude　lower　than　that　of　the　undoped　glass-ceramic.　This　work　indicates　that　AlN　doping　is　an　effective　strategy　to　obtain　a　reliable　borosilicate　glass-ceramics　for　SOFCs.　©　2019　Elsevier　Ltd