Nai-Zheng Zhang, M.S.

Research Chemist

BS, Zhejiang University,1963
MS, Nanjing University, 1966

Main Interests:

My research is directed by Dr. Ken Anusavice, who has been the principal investigator of two NIH/NIDCR grants. We have studied two glass-ceramic systems over the past 10 years, lithium-based and fluorcanasite glass-ceramics. We have analyzed their indentation strength, fracture toughness, chemical durability, and color properties, and we have characterized their crystal microstructures by X-ray diffraction, SEM, and energy dispersive spectroscopy (EDS). We are currently studying the controlled release of fluorine and other agents from a variety of particle size distributions and from particles distributed in resin coating.

Selected Publications:

Oh W-S, Zhang N-Z, Anusavice KJ (2003). Effect of nucleation temperature on fracture toughness (KIC) of fluorcanasite-based glass-ceramic, Int J Prosthodont 16(5):505-509.

Zhang N-Z, Anusavice KJ (1999): Effect of alumina on the strength, fracture
toughness, and crystal structure of fluorcanasite glass-ceramic. J Am Ceram Soc 82(9):2509-2513.

Anusavice KJ, Zhang N-Z (1998). Chemical durability of Dicor and fluorcanasite based glass-ceramics. J Dent Res 77(7):1553-1559.

Anusavice KJ, Zhang N-Z (1997). Chemical durability of Dicor and lithia-based glass-ceramics. Dent Mater 13:13-19.

Anusavice KJ, Zhang N-Z (1997). Effect of crystallinity on strength and fracture
toughness of Li2O–Al2O3–CaO–SiO2 glass-ceramics. J Am Ceram Soc 80 (6)1353- 1358.

Anusavice KJ, Zhang N-Z, Moorhead JE (1994). Influence of colorants on crystallization and mechanical properties of lithia-based glass-ceramics. Dent
Mater 10:141-146.

Anusavice KJ, Zhang N-Z, Moorhead JE (1994). Influence of P2O5, AgNO3, and FeCl3 on color and translucency of lithia-based glass-ceramics. Dent Mater 0(4):230-235.