[en] The objective of this PWS-F3 was to examine and to characterize JAERl made TRlSO-coated fuel particles with a ZrC-layer instead of a SiC-layer as retentive coating. The work involved the fabrication of fuel particles by JAERl, supply of ZrC particles to KFA and their examination at lRW with scanning electron microscopy, transmission electronmicroscopy and microhardness. The appearance and behaviour of the layers is described and discussed. (author)