في تخليق نموذجي ، تم خلط hBN (Momentive Performance Materials Inc.) واليوريا (SigmaAldrich) معًا عند نسبة الوزن 1 60 داخل حاوية طحن الصلب باستخدام مطحنة كرات كوكبية (Pulverisette 7، Fritsch) في
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