bɪkˈʌz ʌvðə tˈɛknɪkəl kəmplˈɛksᵻɾi ænd hˈaɪ kˈɔst ʌvðə sˈɪnθəsˌɪs, ˌeɪtʃˈɛf sˈiː hɐz ɐ vˈɛɹi lˈɪmɪɾᵻd jˈuːs, dᵻspˈaɪt ɪts fˈeɪvɚɹəbəl pɹˈɑːpɚɾiz sˈʌtʃ ɐz hˈaɪ hˈɑːɹdnəs ɡɹˈeɪɾɚ ðɐn nˈaɪn mˈoʊz ænd mˈɛltɪŋ pˈɔɪnt.
Because of the technical complexity and high cost of the synthesis, HfC has a very limited use, despite its favorable properties such as high hardness (greater than 9 Mohs) and melting point.