The work described in the following constitutes the Deliverable 4.1 and deals with the production and characterization of powders and bulks of various ultra-high temperature ceramics. In particular the microstructure and mechanical properties are presented together with oxidation resistance tests on selected composites. Materials production and microstructural characterization have been carried out at CNR-ISTEC in Faenza (RA) and at the University of Cagliari (UNICA), mechanical characterization was performed at CNR-ISTEC in Faenza. The third partner, CNR-INO, Florence, is in charge of the optical characterization of the ceramics that will be object of Deliverable 5.1. The activity herein described also benefits from the national and international collaboration: the University of Ferrara-Department of Engineering (UNIFE), for measurements of samples roughness, and the Institute for Engineering and Systems (PROMES-CNRS) in Odeillo, France, for the measurements of optical properties at high temperature and oxidation of selected composites in solar furnace. This present Deliverable D4.1 covers the following tasks and deliverables: WP2:Task 2.1: Acquisition and characterization of commercial raw powders. Task 2.2: Production of UHTC powders by SHS. Task 2.3: Characterization of the obtained SHS powders. Task 2.4: Production of dense monolithic UHTCs by SPS starting from SHS powders, or by reactive sintering starting from commercial reactants. Task 2.5: Characterization of dense monolithic UHTCs: final density, x-ray diffraction, microstructural characterization by scanning electron microscopy. D 2.1: Production of UHTC as powders or monoliths. WP3:Task 3.1: Compositional design, acquisition and characterization of commercial powders. Task 3.2: Powder Mixtures preparation. Task 3.3: Sintering of dense materials. Task 3.4: Characterization of dense samples. D 3.2: Production of dense UHTC specimens containing sintering aids. WP4:Task 4.1: Thermo-mechanical characterization. Task 4.2: Thermal characterization. Task 4.3: Oxidation resistance. The project was initiated on March 21st 2013. The manuscript of this report was released by the authors in March 2015.
SUPERSOLAR Ultra refractory ceramic absorbers for thermodynamic solar energy generation at high temperature Deliverable D 4.1: Technical report on microstructure, thermo-mechanical properties and oxidation resistance
Laura Silvestroni;Diletta Sciti;
2015
Abstract
The work described in the following constitutes the Deliverable 4.1 and deals with the production and characterization of powders and bulks of various ultra-high temperature ceramics. In particular the microstructure and mechanical properties are presented together with oxidation resistance tests on selected composites. Materials production and microstructural characterization have been carried out at CNR-ISTEC in Faenza (RA) and at the University of Cagliari (UNICA), mechanical characterization was performed at CNR-ISTEC in Faenza. The third partner, CNR-INO, Florence, is in charge of the optical characterization of the ceramics that will be object of Deliverable 5.1. The activity herein described also benefits from the national and international collaboration: the University of Ferrara-Department of Engineering (UNIFE), for measurements of samples roughness, and the Institute for Engineering and Systems (PROMES-CNRS) in Odeillo, France, for the measurements of optical properties at high temperature and oxidation of selected composites in solar furnace. This present Deliverable D4.1 covers the following tasks and deliverables: WP2:Task 2.1: Acquisition and characterization of commercial raw powders. Task 2.2: Production of UHTC powders by SHS. Task 2.3: Characterization of the obtained SHS powders. Task 2.4: Production of dense monolithic UHTCs by SPS starting from SHS powders, or by reactive sintering starting from commercial reactants. Task 2.5: Characterization of dense monolithic UHTCs: final density, x-ray diffraction, microstructural characterization by scanning electron microscopy. D 2.1: Production of UHTC as powders or monoliths. WP3:Task 3.1: Compositional design, acquisition and characterization of commercial powders. Task 3.2: Powder Mixtures preparation. Task 3.3: Sintering of dense materials. Task 3.4: Characterization of dense samples. D 3.2: Production of dense UHTC specimens containing sintering aids. WP4:Task 4.1: Thermo-mechanical characterization. Task 4.2: Thermal characterization. Task 4.3: Oxidation resistance. The project was initiated on March 21st 2013. The manuscript of this report was released by the authors in March 2015.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
