D
Dachamir Hotza
Researcher at Universidade Federal de Santa Catarina
Publications - 444
Citations - 8480
Dachamir Hotza is an academic researcher from Universidade Federal de Santa Catarina. The author has contributed to research in topics: Ceramic & Chemistry. The author has an hindex of 36, co-authored 402 publications receiving 6577 citations. Previous affiliations of Dachamir Hotza include University of Limoges & University of Hamburg.
Papers
More filters
Journal ArticleDOI
Rice husk ash as an alternate source for active silica production
TL;DR: In this paper, a procedure for obtaining and characterization active silica with a high specific surface area from rice husk ash was developed, and the relative amount of silica was increased after burning out the carbonaceous material at different times and temperatures.
Journal ArticleDOI
Effect of nano-silica on rheology and fresh properties of cement pastes and mortars
Luciano Senff,João A. Labrincha,Victor M. Ferreira,Dachamir Hotza,Wellington Longuini Repette +4 more
TL;DR: Amorphous nano-silica (nS) particles were incorporated in cement pastes and mortars, and their effect on the fresh state behavior was analysed as mentioned in this paper, where the influence of nS content was better observed on yield stress when compared with plastic viscosity values (the first increased about 66.5% while the latter just increased 3.6%).
Journal ArticleDOI
Review: aqueous tape casting of ceramic powders
Dachamir Hotza,Peter Greil +1 more
TL;DR: In this article, the water-based tape casting of ceramic powders is reviewed and the formulation and processing parameters of aqueous tape casting are discussed. Statistical design of experiments was used for the improvement of the process.
Journal ArticleDOI
Current developments in reversible solid oxide fuel cells
Sergio Y. Gómez,Dachamir Hotza +1 more
TL;DR: In this article, the operation principles of SOEC and SOFC and the current state of the electrolyte, fuel and oxygen electrodes have been reviewed and discussed in detail, each major section is divided into materials families, including manufacturing issues.
Journal ArticleDOI
Effect of nano-SiO2 and nano-TiO2 addition on the rheological behavior and the hardened properties of cement mortars
Luciano Senff,Luciano Senff,Dachamir Hotza,Sandra S. Lucas,Victor M. Ferreira,João A. Labrincha +5 more
TL;DR: In this article, the use of nano-SiO2 and nano-TiO2 (nT) in cement pastes and mortars was reported, and the results of kinetics of hydration followed the same tendency found by rheology.