2009

Zhang, Shan-Tao ; Kounga Njiwa, Alain Brice ; Jo, Wook ; Jamin, Christine ; Seifert, Klaus T. P. ; Granzow, Torsten ; Rödel, Jürgen ; Damjanovic, Dragan (2009)
High-Strain Lead-free Antiferroelectric Electrostrictors.
In: Advanced Materials, 21 (46)
doi: 10.1002/adma.200901516
Artikel, Bibliographie

Rödel, Jürgen ; Kounga Njiwa, Alain Brice ; Weissenberger-Eibl, Marion ; Koch, Daniel ; Bierwisch, Antje ; Rossner, Wolfgang ; Hoffmann, Michael J. ; Danzer, Robert ; Schneider, Gerhard (2009)
Development of a roadmap for advanced ceramics: 2010–2025.
In: Journal of the European Ceramic Society, 29 (9)
doi: 10.1016/j.jeurceramsoc.2008.10.015
Artikel, Bibliographie

2008

Zhang, Shan-Tao ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Deng, Yu (2008)
Temperature-Dependent Electrical Properties of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3Ceramics.
In: Journal of the American Ceramic Society, 91 (12)
doi: 10.1111/j.1551-2916.2008.02778.x
Artikel, Bibliographie

Jones, Jacob L. ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Granzow, Torsten (2008)
Domain Switching During Electromechanical Poling in Lead Zirconate Titanate Ceramics.
In: Journal of the American Ceramic Society, 91 (5)
doi: 10.1111/j.1551-2916.2008.02327.x
Artikel, Bibliographie

2007

Granzow, Torsten ; Leist, Thorsten ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Rödel, Jürgen (2007)
Ferroelectric properties of lead zirconate titanate under radial load.
In: Applied Physics Letters, 91 (14)
doi: 10.1063/1.2794410
Artikel, Bibliographie

Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Granzow, Torsten ; Rödel, Jürgen (2007)
Influence of radial stress on the poling behaviour of lead zirconate titanate ceramics.
In: Acta Materialia, 55 (2)
doi: 10.1016/j.actamat.2006.08.057
Artikel, Bibliographie

2006

Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Rödel, Jürgen ; Neubrand, Achim (2006)
Mechanical Properties of Dry-Pressed Powder Compacts: Case Study on Alumina Nanoparticles.
In: Journal of the American Ceramic Society, 89 (8)
doi: 10.1111/j.1551-2916.2006.01088.x
Artikel, Bibliographie

Granzow, Torsten ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Rödel, Jürgen (2006)
Electromechanical poling of piezoelectrics.
In: Applied Physics Letters, 88 (25)
doi: 10.1063/1.2216028
Artikel, Bibliographie

Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Rödel, Jürgen ; Turner, S. L. ; Comyn, Timothy ; Bell, A. J. (2006)
Ferroelasticity and R-Curve Behavior in BiFeO3-PbTiO3.
In: Journal of the American Ceramic Society, 89 (5)
doi: 10.1111/j.1551-2916.2006.00968.x
Artikel, Bibliographie

Kounga Njiwa, Alain Brice ; Fett, Theo ; Lupascu, Doru C. ; Rödel, Jürgen (2006)
Effect of geometry and electrical boundary conditions on R-curves for lead zirconate titanate ceramics.
In: Engineering Fracture Mechanics, 73 (3)
doi: 10.1016/j.engfracmech.2005.08.003
Artikel, Bibliographie

2005

Kounga Njiwa, Alain Brice ; Lupascu, Doru C. ; Aulbach, Emil ; Rödel, Jürgen (2005)
An Optical Method to Assess Electromechanical Coupling in Ferroelectric Ceramics.
In: Experimental Mechanics, 45 (3)
doi: 10.1007/BF02427953
Artikel, Bibliographie

Fett, Theo ; Kounga Njiwa, Alain Brice ; Rödel, Jürgen (2005)
Shielding Stresses for Soft PZT.
In: International Journal of Fracture, 134 (2)
doi: 10.1007/s10704-005-8547-7
Artikel, Bibliographie

Kounga Njiwa, Alain Brice ; Galal Yousef, Susan ; Fett, Theo ; Rödel, Jürgen (2005)
Influence of microcracking on crack-tip toughness of alumina.
In: Engineering Fracture Mechanics, 72 (7)
doi: 10.1016/j.engfracmech.2004.09.004
Artikel, Bibliographie

Fett, Theo ; Kounga Njiwa, Alain Brice ; Rödel, Jürgen (2005)
Crack opening displacements of Vickers indentation cracks.
In: Engineering Fracture Mechanics, 72 (5)
doi: 10.1016/j.engfracmech.2004.07.003
Artikel, Bibliographie

Fett, Theo ; Munz, D. ; Kounga Njiwa, Alain Brice ; Rödel, Jürgen ; Quinn, G. D. (2005)
Bridging stresses in sintered reaction-bonded Si3N4 from COD measurements.
In: Journal of the European Ceramic Society, 25 (1)
doi: 10.1016/j.jeurceramsoc.2004.03.005
Artikel, Bibliographie

2004

Kounga Njiwa, Alain Brice ; Lupascu, Doru C. ; Rödel, Jürgen (2004)
Crack tip switching zone in ferroelectric ferroelastic materials.
In: Acta Materialia, 52 (16)
doi: 10.1016/j.actamat.2004.06.047
Artikel, Bibliographie

Kounga Njiwa, Alain Brice ; Fett, Theo ; Quinn, G. D. ; Rödel, Jürgen (2004)
Crack-tip toughness measurements on a reaction bonded Si3N4.
In: Journal of the American Ceramic Society, 87 (8)
Artikel, Bibliographie

Oates, William S. ; Lynch, Christopher S. ; Lupascu, Doru C. ; Kounga Njiwa, Alain Brice ; Aulbach, Emil ; Rödel, Jürgen (2004)
Subcritical crack growth in lead zirconate titanate.
In: Journal of the American Ceramic Society, 87 (7)
Artikel, Bibliographie

Fett, Theo ; Kounga Njiwa, Alain Brice ; Rödel, Jürgen (2004)
Stresses and stress intensity factors from COD of Vickers indentation cracks.
In: Journal of materials science / Letters, 39
Artikel, Bibliographie

Kounga Njiwa, Alain Brice (2004)
Verschiebungsfelder vor und hinter der Rissspitze in verstärkten Keramiken.
Technische Universität Darmstadt
Dissertation, Bibliographie

2003

Kounga Njiwa, Alain Brice ; Fett, Theo ; Lupascu, Doru C. ; Rödel, Jürgen (2003)
Crack-tip toughness of a soft lead zirconate titanate.
In: Journal of the American Ceramic Society, 86 (11)
Artikel, Bibliographie