Whiskers were rapidly grown from the gaseous phase. Near to the sublimation temperature of ZnO, a system of parallel antiphase boundaries along [¯10•1] became split; forming a system of intersecting antiphase boundaries along the [10•1] and [10•¯1] directions.

Transmission Electron Microscopic Study of Antiphase Boundaries in Zinc Oxide Whiskers. Nowok, J., Precht, W., Zebala, K.: Acta Physica Polonica A, 1973, 44[4], 507-17