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  1. No Access

    Article

    Design of porous Geopolymers for hygrothermal applications: role of nano and meso porosity

    Soluble silica content and the concentration of hydrogen peroxide were used to achieve porous geopolymers with nano, meso and milliporosity. The use of rice husk ash as a partial replacement for metakaolin all...

    Zenabou N. M. Ngouloure, E. Kamseu, Lynn Myllyam Beleuk à Moungam… in Silicon (2022)

  2. No Access

    Article

    Dependence of the insulating behavior of some common woods to the pore network and packing density of their fibers: a microstructural approach

    Thermophysical and microstructural behavior of eleven tropical woods widely available and commonly used was investigated. Experimental measurements of thermal conductivity and thermal diffusivity of wood were ...

    E. Soubgui Nouemsi, Zenabou N. M. Ngouloure, J. C. Bidoung… in Transport in Porous Media (2021)

  3. No Access

    Article

    In vitro surface reaction in SBF of a non-crystalline aluminosilicate (geopolymer) material

    Geopolymer is a non-crystalline material based on aluminosilicate reaction exhibiting ceramic-like properties. It showed the possibility to use geopolymer as biomaterials by soaking in SBF solution to induct c...

    C. Tippayasam, S. Sutikulsombat, E. Kamseu… in Journal of the Australian Ceramic Society (2019)

  4. No Access

    Article

    Moisture Control Capacity of Geopolymer Composites: Correlation of the Bulk Composition–Pore Network with the Absorption–Desorption Behavior

    Porous composites with the principal class of porosity in the range of those presented in the literature as ideal for the moisture control capacity of building environment are described. In the course of the d...

    E. Kamseu, H. Mohamed, J. C. Sofack, Duangrudee Chaysuwan… in Transport in Porous Media (2018)

  5. No Access

    Article

    The role of kyanite in the crystallization and densification of the high strength mullite matrix composites

    The crystal structure, the unit cell parameters and the extent of mullitization were determined, using the Rietveld method, for range of mullite matrix formulations in which kyanite is used as particles reinfo...

    E. Kamseu, N. J. G. Deutou, N. A. Nzeukou… in Journal of Thermal Analysis and Calorimetry (2018)

  6. No Access

    Article

    The role of kyanite in the improvement in the crystallization and densification of the high strength mullite matrix

    Fine particles of kyanite were used as reinforcement in mullite matrix composite. Mix of metakaolin and meta-alumina (calcined bauxite) received different fraction of fine kyanite particles: 37.5, 42.5 and 50 ...

    J. G. N. Deutou, Hawa Mohamed, N. A. Nzeukou… in Journal of Thermal Analysis and Calorimetry (2016)

  7. No Access

    Article

    Mineralogical and Physical Changes during Sintering of Plastic Red Clays from Sanaga Swampy Valley, Cameroon

    The sintering behavior and mechanical properties of four alluvial clays sampled from the Sanaga River (sampling sites: Nanga-Eboko, Mbandjock, Batschenga, and Ebebda), central region of Cameroon were investiga...

    Mr. N. A. Nzeukou, K. Traina, E. R. Medjo… in Interceram - International Ceramic Review (2014)

  8. No Access

    Article

    Sintering behaviors of two porcelainized stoneware compositions using pegmatite and nepheline syenite minerals

    Semi-vitreous bodies, with flexural strength of ~78 MPa and water absorption of ~0.4 % for the optimal maturated specimens, were successfully prepared with solid solutions of pegmatite and nepheline syenite, r...

    T. Tchakounte Bakop, R. T. Tene Fongang… in Journal of Thermal Analysis and Calorimetry (2013)

  9. No Access

    Article

    Insulating behavior of metakaolin-based geopolymer materials assess with heat flux meter and laser flash techniques

    Thermo physical behavior of metakaolin-based geopolymer materials was investigated. Five compositions of geopolymers were prepared with Si/Al from 1.23 to 2.42 using mix of sodium and potassium hydroxide (~7.5...

    E. Kamseu, B. Ceron, H. Tobias, E. Leonelli… in Journal of Thermal Analysis and Calorimetry (2012)

  10. No Access

    Article

    Enhanced thermal stability in K2O-metakaolin-based geopolymer concretes by Al2O3 and SiO2 fillers addition

    Based on the principle of stability of geopolymer gel as refractory binder, a geopolymeric paste in the K2O–Al2O3–SiO2 system was developed and used to produce refractory concretes by adding various amount of α-q...

    E. Kamseu, A. Rizzuti, C. Leonelli, D. Perera in Journal of Materials Science (2010)

  11. No Access

    Article

    Descriptive microstructure and fracture surface observations of fired volcanic ash

    Crystals of the pyroxene group (diopside, augite and enstatite, hedenbergite), series of crystals with the general formula (Mg x Fe1–x )2SiO4 having vario...

    C. Leonelli, E. Kamseu, U. C. Melo, A. Corradi… in Journal of Materials Science (2009)

  12. No Access

    Article

    Service life prediction for refractory materials

    Ultrasonic pulse velocity testing and image analysis were used to predict the thermal stability of cordierite–mullite refractories. Two compositions used as substrates in fast firing of porcelain whiteware, ch...

    D. N. Boccaccini, M. Cannio, T. D. Volkov-Husoviæ… in Journal of Materials Science (2008)

  13. No Access

    Article

    Non-contact dilatometry of hard and soft porcelain compositions

    Two different porcelain compositions were studied: a soft and a hard one. DTA, optical non-contact dilatometry and DSC were used to evaluate the thermal behaviour of the porcelain compositions with the aim to ...

    E. Kamseu, C. Leonelli, D. Boccaccini in Journal of Thermal Analysis and Calorimetry (2007)