| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Basso, Stefano
Brera Astronomical Observatory
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2014Evaluation of the surface strength of glass plates shaped by hot slumping processcitations
- 2013Accurate integration of segmented x-ray optics using interfacing ribscitations
- 2010The optics system of the New Hard X-ray Mission: design and developmentcitations
- 2009Design And Development The Ixo Mirrors By Innovative Slumping Glass Technologies
- 2009Stiff and Lightweight Optical Mirrors Made by Glass Slumping with Foamed Core
- 2009Design and development of the optics system for the NHXM Hard X-ray and Polarimetric Missioncitations
- 2009Technologies for manufacturing of high angular resolution multilayer coated optics for future new hard x-ray missions: a status reportcitations
- 2008Simbol-X mirror module design scientific optimization.
- 2008Design and development of the SIMBOL-X hard x-ray opticscitations
- 2008Feasibility study for the manufacturing of the multilayer X-ray optics for Simbol-X
- 2008The relation between the weight and the quality image in a X-ray telescope, with a particular regard to Simbol-X
- 2007Development of a prototype nickel optic for the Constellation-X hard x-ray telescopecitations
- 2005Development of grazing-incidence multilayer mirrors by direct Ni electroforming replication: a status reportcitations
Places of action
| Organizations | Location | People |
|---|
article
Evaluation of the surface strength of glass plates shaped by hot slumping process
Abstract
Hot slumping technology is under development by several research groups in the world for the realization of grazing-incidence segmented mirrors for x-ray astronomy, based on thin glass plates shaped over a mold at temperatures above the transformation point. The performed thermal cycle and related operations might have effects on the strength of the glass, with consequences for the structural design of the elemental optical modules and, consequently, on the entire x-ray optic for large astronomical missions such as IXO and ATHENA. The mechanical strength of glass plates after they underwent the slumping process was tested through destructive double-ring tests in the context of a study performed by the Astronomical Observatory of Brera with the collaboration of Stazione Sperimentale del Vetro and BCV Progetti. The entire study was done on more than 200 D263 Schott borosilicate glass specimens of dimensions 100 mm×100 mm and a thickness 0.4 mm, either flat or bent at a radius of curvature of 1000 mm through the pressure-assisted hot slumping process developed by INAF-OAB. The collected experimental data have been compared with nonlinear finite element model analyses and treated with the Weibull statistic to assess the current IXO glass x-ray telescope design, in terms of survival probability, when subjected to static and acoustic loads characteristic of the launch phase. The paper describes the activities performed and presents the obtained results....