scholarly journals The In Situ Ion Irradiation Toolbox: Time-Resolved Structure and Property Measurements

JOM ◽  
2021 ◽  
Author(s):  
E. Lang ◽  
C. A. Dennett ◽  
N. Madden ◽  
K. Hattar
Keyword(s):  
Surface Composition ◽  
Ion Irradiation ◽  
In Situ Monitoring ◽  
Material Structure ◽  
Dynamic Interactions ◽  
Time Resolved ◽  
Spatial And Temporal Scales ◽  
Structure And Property ◽  
Characterization Techniques

AbstractThe dynamic interactions of ions with matter drive a host of complex evolution mechanisms, requiring monitoring on short spatial and temporal scales to gain a full picture of a material response. Understanding the evolution of materials under ion irradiation and displacement damage is vital for many fields, including semiconductor processing, nuclear reactors, and space systems. Despite materials in service having a dynamic response to radiation damage, typical characterization is performed post-irradiation, washing out all information from transient processes. Characterizing active processes in situ during irradiation allows the mechanisms at play during the dynamic ion-material interaction process to be deciphered. In this review, we examine the in situ characterization techniques utilized for examining material structure, composition, and property evolution under ion irradiation. Covering analyses of microstructure, surface composition, and material properties, this work offers a perspective on the recent advances in methods for in situ monitoring of materials under ion irradiation, including a future outlook examining the role of complementary and combined characterization techniques in understanding dynamic materials evolution.

Time-resolved in situ monitoring of photocatalytic reactions by probe electrospray ionization mass spectrometry

The Analyst ◽  
2020 ◽  
Vol 145 (9) ◽  
pp. 3313-3319
Author(s):  
Zhongbao Han ◽  
Xiaoyu Gu ◽  
Shirong Wang ◽  
Liyan Liu ◽  
Ying Wang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Real Time ◽  
Electrospray Ionization Mass Spectrometry ◽  
In Situ Monitoring ◽  
Ionization Mass ◽  
Time Resolved ◽  
Photocatalytic Reactions ◽  
Probe Electrospray Ionization

We report the application of PESI-MS to in situ monitoring of photocatalytic reactions of cationic dyes in suspensions in real-time.

In-situ monitoring of electro-deposition for iron-nickle thin film by time-resolved X-ray absorption spectroscopy

2018 ◽  
Vol 5 (5) ◽  
pp. 10997-11003 ◽  
Author(s):  
Wanwisa Limphirat ◽  
W. Inprasit ◽  
T. Juagwon ◽  
P. Prachopchok ◽  
M. Duriyarattakarn ◽  
...  
Keyword(s):  
Thin Film ◽  
Absorption Spectroscopy ◽  
In Situ Monitoring ◽  
Time Resolved ◽  
Electro Deposition ◽  
X Ray ◽  
X Ray Absorption

Advances in In Situ SiC Growth Analysis Using Cone Beam Computed Tomography

2019 ◽  
Vol 963 ◽  
pp. 5-9 ◽  
Author(s):  
Michael Salamon ◽  
Matthias Arzig ◽  
Norman Uhlmann ◽  
Peter J. Wellmann
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
In Situ Monitoring ◽  
Material Structure ◽  
Two Dimensional ◽  
Accurate Analysis ◽  
X Ray ◽  
Characteristic Features ◽  
Third Dimension

Computed Tomography is becoming a valuable method for the in-situ monitoring of vapor grown silicon carbide single crystals [1]. Already the two-dimensional X-ray radiography has shown the potential of surveilling the growth process [2] and its characteristic features like the evolution of the facet, the crystal volume or the source material structure from one imaging plane. Even though the demands on imaging capability of the applied X-ray components used for a tomographic analysis are higher than for two-dimensional imaging, the extension of this method to the third dimension is highly beneficial. It allows investigating the full geometry and three-dimensional location of the features and by this provides a more accurate analysis. In this contribution we present the physical characteristics and the latest advances of our technique for the visualization of facets.

scholarly journals In situ monitoring the optical properties of dielectric materials during ion irradiation

2016 ◽  
Vol 6 (3) ◽  
pp. 734 ◽  
Author(s):  
O. Peña-Rodríguez ◽  
M.L. Crespillo ◽  
P. Díaz-Nuñez ◽  
J.M. Perlado ◽  
A. Rivera ◽  
...  
Keyword(s):  
Optical Properties ◽  
Ion Irradiation ◽  
Dielectric Materials ◽  
In Situ Monitoring

In-Situ Monitoring of the Initial Growth of a-C:H Films by AES

1989 ◽  
Vol 153 ◽  
Author(s):  
K.G. Tschersich
Keyword(s):  
Film Growth ◽  
Surface Composition ◽  
Ion Beam ◽  
Sample Surface ◽  
Carbon Films ◽  
In Situ Monitoring ◽  
Initial Growth ◽  
Amorphous Hydrogenated Carbon ◽  
Beam Deposition

AbstractAmorphous hydrogenated carbon films are deposited by direct ion beam deposition onto Si and W substrates at room temperature. Simultaneously, the sample surface composition is measured by Auger electron spectroscopy. The results indicate a sharp interface between film and Si and the formation of a W2C layer between film and W. The in-situ measurements are compared with sputter depth profiles. It is found that the former ones give insight into film growth processes, that is unattainable by sputter profiling.

Ion Irradiation on Phase Change Materials

2011 ◽  
Vol 1354 ◽  
Author(s):  
Emanuele Rimini ◽  
Egidio Carria ◽  
Antonio Massimiliano Mio ◽  
Maria Miritello ◽  
Santo Gibilisco ◽  
...  
Keyword(s):  
Thin Films ◽  
Nucleation Rate ◽  
Phase Change Materials ◽  
Ion Irradiation ◽  
Crystallization Kinetic ◽  
Optical Microscope ◽  
Local Order ◽  
Thermal Spike ◽  
Time Resolved

ABSTRACTIon irradiation with 130 keV Ge+ or 120 keV Sb+ has modified, by thermal spike effect, the local atomic arrangement in the structure of as-deposited sputtered amorphous GeTe and Ge2Sb2Te5 thin films. The changes in the local order have been analyzed by Raman and EXAFS spectroscopy. In addition the crystallization kinetic, measured by “in situ” time resolved reflectivity and optical microscope analysis, is found to be faster in the irradiated samples. The nucleation rate and the grain growth velocity are enhanced by a factor of about ten with respect to the unirradiated samples in the investigated temperature range (120°C –170°C).

An Initial Study Towards In-Situ Ultrasonic Monitoring and Measurement of Part Properties During Photopolymer Based Additive Manufacturing

2019 ◽  
Author(s):  
Tong Su ◽  
Menghan Jiang ◽  
Qing-Ming Wang ◽  
Xiayun Zhao
Keyword(s):  
Elastic Modulus ◽  
Additive Manufacturing ◽  
Ultrasonic Transducer ◽  
Initial Study ◽  
In Situ Monitoring ◽  
Ex Situ ◽  
Process Conditions ◽  
Time Resolved ◽  
Monitoring And Measurement

Abstract This paper presents our recent preliminary study on using a novel in-house ultrasonic measurement technique to investigate ex situ the elastic modulus evolution during a photopolymer based additive manufacturing (PAM). Experiment is designed to study the effects of PAM process parameters on the elastic modulus of fabricated samples. A unique lab-built line-focused ultrasonic transducer based on time-resolved defocusing is employed to measure velocities of the surface waves (Rayleigh waves and longitudinal bulk waves) leaking from the samples. The samples’ elastic properties can be calculated from the obtained wave velocities. As a result, changes in elastic modulus with the varying PAM process conditions are successfully detected and quantified by this ex situ ultrasonic technique, revealing important information on both the “need-to” and “how-to” develop an in-situ monitoring and measurement system for part properties during PAM processes. The research outcome will not only enhance understanding about evolution of mechanical properties during PAM, but also offer insightful guidance on a future development based on the reported ex-situ ultrasonic technology towards an in-situ ultrasonic system for in-process measurement and advanced control of PAM.

Effets of surfaces on precipitate morphology in irradiated thin foils

1978 ◽  
Vol 36 (1) ◽  
pp. 654-655
Author(s):  
D.I. Potter ◽  
A. Taylor
Keyword(s):  
Ion Irradiation ◽  
Dark Field Image ◽  
Thin Foil ◽  
Dark Field ◽  
Al Alloy ◽  
Bright Field Image ◽  
Dislocation Loops ◽  
Precipitate Morphology ◽  
Thin Foils

Thermal aging of Ni-12.8 at. % A1 and Ni-12.7 at. % Si produces spatially homogeneous dispersions of cuboidal γ'-Ni3Al or Ni3Si precipitate particles arrayed in the Ni solid solution. We have used 3.5-MeV 58Ni+ ion irradiation to examine the effect of irradiation during precipitation on precipitate morphology and distribution. The nearness of free surfaces produced unusual morphologies in foils thinned prior to irradiation. These thin-foil effects will be important during in-situ investigations of precipitation in the HVEM. The thin foil results can be interpreted in terms of observations from bulk irradiations which are described first.Figure 1a is a dark field image of the γ' precipitate 5000 Å beneath the surface(∿1200 Å short of peak damage) of the Ni-Al alloy irradiated in bulk form. The inhomogeneous spatial distribution of γ' results from the presence of voids and dislocation loops which can be seen in the bright field image of the same area, Fig. 1b.

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