1989
33. R. Anderson, R. Gerhardt, J.B. Wachtman, Jr., S. Becher and D.G. Onn, “Thermal, Mechanical and Dielectric Properties of Mullite Cordierite Composites,” Chapter in Ceramic Subtrastes and Packages for Electronic Applications: Advances in Ceramics, Vol. 26, American Ceramic Society, pp. 265-278 (1989). (ISBN: 0-916094-35-9)
32. E.A. Hayri, M. Greenblatt, P. Pruna and R. Gerhardt, “Na2O–P2O5–SiO2 Gels: Preparation and Characterization,” J. NonCryst. Solids. 111, 167-172 (1989). (DOI: 10.1016/0022-3093(89)90277-9)
31. S. Bhattacharja, F. D’Orazio, J.C. Tarczon, W.P. Halperin and R. Gerhardt, “Internal Structure of Porous Silica: A Model System for Characterization by Nuclear Magnetic Resonance,” J. Am. Ceram. Soc. 72 [11], 2126-2130 (1989). Published online 8 Mar. 2005. (DOI: 10.1111/j.1151-2916.1989.tb06043.x)
30. E.A. Hayri, M. Greenblatt, M. Miceli, J. Oliver and R. Gerhardt, “Magnetic, Electrical and Microstructural Properties of YBa2Cu3O7: A Comparison of Sol-Gel, Co-Precipitated and Solid State Processing Routes,” J. Mat. Res. 4 [5],1099-1102 (1989). Published online 31 Jan. 2012. (DOI: 10.1557/JMR.1989.1099)
29. F. D’Orazio, S. Bhattacharja, W.P. Halperin and R. Gerhardt, “Enhanced Self-Diffusion of Water in Restricted Geometry,” Phys.Rev.Lett. 63 [1], 43-46 (1989). (DOI: 10.1103/PhysRevLett.63.43)
28. R. Anderson, R. Gerhardt, J.B. Wachtman, Jr., S. Becher and D.G. Onn, “Thermal, Mechanical and Dielectric Properties of Mullite Cordierite Composites,” Chapter in Ceramic Subtrastes and Packages for Electronic Applications: Advances in Ceramics, Vol. 26, American Ceramic Society, pp. 265-278 (1989). (ISBN: 0-916094-35-9)
27. W. Cao, R. Gerhardt and J.B. Wachtman, Jr., “Low-Permittivity Porous Silica by a Colloidal Processing Method,” Chapter in Ceramic Subtrastes and Packages for Electronic Applications: Advances in Ceramics, Vol. 26, American Ceramic Society, pp. 409-418 (1989). (ISBN: 0-916094-35-9)
26. G.G. Long, S.T. Krueger and R.A. Gerhardt, “Small Angle Neutron Scattering Study of Microporous Silica,” Chapter in Ceramic Subtrastes and Packages for Electronic Applications: Advances in Ceramics, Vol. 26, American Ceramic Society, pp. 171-180 (1989).
25. H. Kerch and R. Gerhardt, “Ultramicrotomy of Porous Ceramics,” Chapter in Ceramic Subtrastes and Packages for Electronic Applications: Advances in Ceramics, Vol. 26, American Ceramic Society, pp. 360-369 (1989).
24. R. Gerhardt, “A Review of Conventional and Non-Conventional Pore Characterization Techniques,” Mat. Res. Symp. Proc. Vol. 137, 75-82 (1989). (DOI: 10.1557/PROC-137-75)
23. H.M. Kerch and R.A. Gerhardt, “Microscopy of Porous Ceramics,” Proc. 47th Annual Meeting of the Electron Microscopy Society of America, ed. G.W. Bailey, 1989, pp. 438-439.
22. H.M. Kerch, R.A. Gerhardt and J.L. Grazul, “A Transmission Electron Microscopic Study of the Densification of 10:90 Colloidal Silica:Alkali Silicate Sol Gels,” Proc. 47th Annual Meeting of the Electron Microscopy Society of America, ed. G.W. Bailey, 1989, pp. 436-437.
21. A.M. Krug, P. Pruna and R. Gerhardt, “Effects of Heat Treatment on the Microstructure and Electrical Properties of Y2BaCuO5,” Extended Abstracts of the Electronics Division at the 91st Annual Meeting of the American Ceramic Society, May 1989.
20. F. Marciniak, M.J. Miceli, P. Pruna and R. Gerhardt, “Microstructure and Electrical Properties of YBa2Cu3O7, Y2BaCuO5 and 50:50 Mixtures of Both,” Extended Abstracts of the Electronics Division at the 91st Annual Meeting of the American Ceramic Society, May 1989.
1988
19. J.B. Wachtman, Jr., R. A. Haber and R. Gerhardt, “Properties of Particulate Composites and Microporous Ceramics,” Mat.Sc.Forum vol. 34, 497-504 (1988). (DOI: 10.4028/www.scientific.net/MSF.34-36.497)
18. W.Cao, R. Gerhardt and J. B. Wachtman, Jr., “Preparation and Sintering of Colloidal Silica–Potassium Silicate Gels,” J. Amer. Ceram. Soc. 71 [12], 1108-1113 (1988). Published online 8 Mar. 2005. (DOI: 10.1111/j.1151-2916.1988.tb05800.x)
17. K.V. Ramanujachary, B.T. Collins, M. Greenblatt, R. Gerhardt and E.A. Reitman, “Dielectric Investigation of the Sliding Charge-Density Wave in T10.3MoO3,” Phys. Rev. B. 38 [11], 7243-7249 (1988). (DOI: 10.1103/PhysRevB.38.7243)
16. R. Gerhardt, “Composites for Electronic Substrate Applications,” Mat. Res. Soc. Symp. Vol. 108, 101-106 (1988). (DOI: 10.1557/PROC-108-101)
15. W. Cao, R. Gerhardt and J.B. Wachtman, Jr., “Effects of Alkali Ions and Water Adsorption on the Dielectric Properties of Bulk Porous Silica By a Colloidal Processing Method,” Extended Abstracts of the Electronics Division at the 90sh Annual Meeting of the American Ceramic Society, May 1988.
14. P. Pruna and R. Gerhardt, “AC Spectroscopy of High Tc Superconductors,” Extended Abstracts of the Electronics Division at the 90sh Annual Meeting of the American Ceramic Society, May 1988.
13. P. Nichols and R. Gerhardt, “Aging Behavior of High Tc Superconducting Phases in the Presence of Controlled Relative Humidity Environments,” Extended Abstracts of the Electronics Division at the 90sh Annual Meeting of the American Ceramic Society, May 1988.
12. S. Clark and R. Gerhardt, “Glass: Boron Nitride Composites for Electronic Substrate Applications,” Extended Abstracts of the Electronics Division at the 90sh Annual Meeting of the American Ceramic Society, May 1988.
11. R.Gerhardt, “Influence of Geometric Factors on Dielectric Constant Measurements,” Extended Abstracts of the Electronics Division at the 90sh Annual Meeting of the American Ceramic Society, May 1988.
1987
10. W.K. Lee, R. Gerhardt and A.S. Nowick, “Anelastic and Dielectric Relaxation of Scandia-Doped Ceria,” J. de Physique 48 [12], C8/251-C8/256 (1987). (DOI: 10.1051/jphyscol:1987835)
9. R. Gerhardt, W.K. Lee and A.S. Nowick, “Anelastic and Dielectric Relaxation of Scandia-Doped Ceria,” J. Phys. Chem. Solids 48 [6], 563-570 (1987). Published online 30 Aug. 2002. (DOI: 10.1016/0022-3697(87)90053-9)
1986
8. R. Gerhardt, A.S. Nowick, M.E. Mochel and I. Dumler, “Grain-Boundary Effect in Ceria Doped with Trivalent Cations, II: Microstructure and Microanalysis,” J. Amer. Ceram. Soc. 69 [9], 647-651(1986). Published online 8 Mar. 2005. (DOI: 10.1111/j.1151-2916.1986.tb07465.x)
7. R. Gerhardt and A.S. Nowick, “Grain-Boundary Effect in Ceria Doped with Trivalent Cations, I: Electrical Measurements,” J. Amer. Ceram. Soc. 69 [9], 641-646 (1986). Published online 8 Mar. 2005. (DOI: 10.1111/j.1151-2916.1986.tb07464.x)
1985
6. R. Gerhardt-Anderson and A.S. Nowick, “The Role of Dopant Ionic Radius in 02–Conducting Solid Electrolytes,” in Transport in Non-stoichiometric Compounds, (ed. by George Simkovich and V.S. Stubican) NATO ASI Series Volume 129, pp 111-124 (1985), (DOI: 10.1007/978-1-4613-2519-2_10)
1983
5. R. Gerhardt-Anderson, F. Zamani-Noor, A.S. Nowick, C.R.A. Catlow and A. Cormack, “Study of Sc2O3 doped Ceria by Anelastic Relaxation,” Solid State Ionics 9 & 10, 931-936 (1983). Published online 18 Sept. 2002. (DOI: 10.1016/0167-2738(83)90113-3)
4. R. Gerhardt-Anderson, A.S. Nowick, M.E. Mochel and I. Dumler, “Microstructure and Microanalysis in Relation to the Grain Boundary Conductivity Effect in Doped Ceria,” Proceedings of the Conference on High Temperature Solid Oxide Electrolytes, August 1983, Brookhaven National Laboratory Report BNL 51738, Vol. I of II, 225-239(1983).
3. Gerhardt, Rosario, “Effects of Dopant Size on Ceria Oxygen Ion C onductors,” Ph.D. Diss. Columbia University, 1983.
1981
2. R. Gerhardt-Anderson and A.S. Nowick, “Ionic Conductivity of CeO2 with Trivalent Dopants of Different Ionic Radii,” Solid State Ionics 5, 547-550(1981). Published online 23 Sept. 2002. (DOI: 10.1016/0167-2738(81)90313-1)
1979
1. Gerhardt, Rosario, “The Electrical Conductivity in CeO2 Doped with Gd2O3, La2O3 and Sc2O3,” MS thesis Columbia University, 1979.