Installation and Operation of a Double-Sided Laser Heating System for the Synthesis of Novel Materials Under Extreme Conditions

2019 ◽  
Vol 69 (10) ◽  
pp. 1107-1114
Author(s):  
Young-Ho KO* ◽  
Kyoung Hun OH ◽  
Kwang Joo KIM
2021 ◽  
Vol 28 (6) ◽  
Author(s):  
Zuzana Konôpková ◽  
Wolfgang Morgenroth ◽  
Rachel Husband ◽  
Nico Giordano ◽  
Anna Pakhomova ◽  
...  

A laser heating system for samples confined in diamond anvil cells paired with in situ X-ray diffraction measurements at the Extreme Conditions Beamline of PETRA III is presented. The system features two independent laser configurations (on-axis and off-axis of the X-ray path) allowing for a broad range of experiments using different designs of diamond anvil cells. The power of the continuous laser source can be modulated for use in various pulsed laser heating or flash heating applications. An example of such an application is illustrated here on the melting curve of iron at megabar pressures. The optical path of the spectroradiometry measurements is simulated with ray-tracing methods in order to assess the level of present aberrations in the system and the results are compared with other systems, that are using simpler lens optics. Based on the ray-tracing the choice of the first achromatic lens and other aspects for accurate temperature measurements are evaluated.


2019 ◽  
Vol 90 (7) ◽  
pp. 073907 ◽  
Author(s):  
Elena Bykova ◽  
Georgios Aprilis ◽  
Maxim Bykov ◽  
Konstantin Glazyrin ◽  
Mario Wendt ◽  
...  

2020 ◽  
Vol 27 (2) ◽  
pp. 414-424 ◽  
Author(s):  
Georg Spiekermann ◽  
Ilya Kupenko ◽  
Sylvain Petitgirard ◽  
Manuel Harder ◽  
Alexander Nyrow ◽  
...  

A portable IR fiber laser-heating system, optimized for X-ray emission spectroscopy (XES) and nuclear inelastic scattering (NIS) spectroscopy with signal collection through the radial opening of diamond anvil cells near 90°with respect to the incident X-ray beam, is presented. The system offers double-sided on-axis heating by a single laser source and zero attenuation of incoming X-rays other than by the high-pressure environment. A description of the system, which has been tested for pressures above 100 GPa and temperatures up to 3000 K, is given. The XES spectra of laser-heated Mg0.67Fe0.33O demonstrate the potential to map the iron spin state in the pressure–temperature range of the Earth's lower mantle, and the NIS spectra of laser-heated FeSi give access to the sound velocity of this candidate of a phase inside the Earth's core. This portable system represents one of the few bridges across the gap between laser heating and high-resolution X-ray spectroscopies with signal collection near 90°.


2012 ◽  
Vol 83 (9) ◽  
pp. 094701 ◽  
Author(s):  
Eiji Fujimoto ◽  
Masatomo Sumiya ◽  
Tsuyoshi Ohnishi ◽  
Mikk Lippmaa ◽  
Masaki Takeguchi ◽  
...  

2018 ◽  
Vol 25 (6) ◽  
pp. 1860-1868 ◽  
Author(s):  
Simone Anzellini ◽  
Annette K. Kleppe ◽  
Dominik Daisenberger ◽  
Michael T. Wharmby ◽  
Ruggero Giampaoli ◽  
...  

In this article, the specification and application of the new double-sided YAG laser-heating system built on beamline I15 at Diamond Light Source are presented. This system, combined with diamond anvil cell and X-ray diffraction techniques, allows in situ and ex situ characterization of material properties at extremes of pressure and temperature. In order to demonstrate the reliability and stability of this experimental setup over a wide range of pressure and temperature, a case study was performed and the phase diagram of lead was investigated up to 80 GPa and 3300 K. The obtained results agree with previously published experimental and theoretical data, underlining the quality and reliability of the installed setup.


2005 ◽  
Vol 25 (1) ◽  
pp. 71-83 ◽  
Author(s):  
E. Schultz ◽  
M. Mezouar ◽  
W. Crichton ◽  
S. Bauchau ◽  
G. Blattmann ◽  
...  

2008 ◽  
Vol 575-578 ◽  
pp. 462-467
Author(s):  
Yun Wang ◽  
Zhen Ying Xu ◽  
Pei Long Dong ◽  
Guo Ding Yuan ◽  
Lan Cai

The rapid market need of MEMS (Micro Electromechanical System) and metal microparts are increasing gradually. The plastic microforming has received more interests and applications in MEMS because it ensures high precision and manufacturing efficiency. However, it raises the higher demand on the microforming and plastic processing technology. Here we present one new process to micro-extrude microparts with laser-aided heating method. The new process is to selectively heat the workpiece with the laser radiation method to the suitable temperature that is between room temperature and recrystallization temperature, and to extrude the workpiece. This process is characterized by decreasing the influence of strain strengthening and lowering the resistance to deformation, and increasing the uniformity of material flow. The key elements of the approach concerning the warm micro-extrusion and temperature control, such as process parameters, laser heating system, micro-extrusion die structure, have been advanced. Furthermore, an important aspect of the research is that the developed system and theory of micro warm extrusion based on laser heating can be explored for further investigation and understanding of plastic microforming.


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