Simulation of the microwave heating of a thin multilayered composite material: A parameter analysis

2018 ◽  
Author(s):  
Hermine Tertrais ◽  
Anaïs Barasinski ◽  
Francisco Chinesta
Keyword(s):  
Composite Material ◽  
Microwave Heating ◽  
Parameter Analysis ◽  
Multilayered Composite

Ultrasonic Bulk Waves Measurements for Defect Detection of Composite Materials

2017 ◽  
Vol 268 ◽  
pp. 401-406
Author(s):  
Nurul Wahida Zainal Abidin Sham ◽  
Md Supar Rohani
Keyword(s):  
Composite Material ◽  
Defect Detection ◽  
Calculation Method ◽  
Material Model ◽  
Test Material ◽  
Bottom Surface ◽  
Bulk Wave ◽  
Multilayered Composite ◽  
Wave Measurements ◽  
Percentage Difference

The defect detection in composite material is important for its quality control where the hidden defect such as crack, corrosion, notch, holes, void and porosity can develop. In this paper, the ultrasonic bulk wave measurements of longitudinal and shear waves are used to identify defect in the multilayered composite material. This study employs pulse echo technique and utilized angle beam transducer. The composite material model investigated in this contribution are made of 24 mm and 12 mm thick Aluminium plates with a width of 100 mm and a length of 203 mm which are separated with an approximately 1 mm thick oil layer. A simulated defect is created in the composite test material by drilling a hole with 2.5 mm diameter and 3 mm depth on the bottom surface of the third layer material. Finding indicates that the defect is located at 53.39 mm from transducer and the percentage difference of the defect location compared to the calculation method is 7%. It indicates that the proposed method can be use to detect defect in multilayered composite material within 10% accuracy compared to the calculation method.

scholarly journals Microwave Heating of Cordierite Ceramic Substrate for After Treatment Systems

2020 ◽  
Vol 31 ◽  
pp. 23-29
Author(s):  
R. C. Marin ◽  
S. V. Savu
Keyword(s):  
Composite Material ◽  
Microwave Heating ◽  
Microwave Power ◽  
Reduction Process ◽  
Ceramic Substrate ◽  
Nox Emissions ◽  
Fast Heating ◽  
Load Impedance ◽  
Catalytic Core ◽  
Matching Load

Selective catalyst reduction is one of the most affordable and successful technologies aimed at reducing NOx emissions from diesel engines. However, the reduction process can be achieved if a certain temperature is reached for the ceramic substrate of the catalytic core. The required temperatures for catalytic reaction vary from 2500 C to 4500 C depending on the technology applied in the catalytic processes. This paper aims at presenting preliminary research in microwave cordierite heating, which is a type of magnesium aluminium silicate used as ceramic honeycomb substrate (catalyst monolith) in the after treatment system in the automotive industry. The research focused on testing the Mg2Al4Si5O18 composite material (cordierite) for different microwave heating regimes in order to establish the level of microwave power required for fast heating. This application will be subject for the further development of new MW-SCR after treatment systems in order to reduce the NOx emissions at cold start engine or low operating regimes of non-road mobile machinery engines. The ceramic composite material was heated for 5 levels of microwave power, from 600 W to 1400 W, using a 6 kW microwave generator coupled with a matching load impedance tuner, and the temperatures were recorded using an IR pyrometer.

Vibration control ability of multilayered composite material made of epoxy beam and polyurethane copolymer with shape memory effect

2004 ◽  
Vol 94 (1) ◽  
pp. 302-307 ◽  
Author(s):  
Jae Heung Yang ◽  
Byoung Chul Chun ◽  
Yong-Chan Chung ◽  
Jae Whan Cho ◽  
Bong Gyoo Cho
Keyword(s):  
Composite Material ◽  
Shape Memory ◽  
Vibration Control ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Multilayered Composite

INVESTIGATION OF DIFFUSION OF ALLOYING ELEMENTS DURING THERMAL CYCLING OF MULTILAYER COMPOSITE MATERIAL MADE OF CHROME AND CARBON STEELS

2021 ◽  
pp. 74-91
Author(s):  
A.A. Khudnev ◽  
◽  
A.I. Plokhikh ◽  
R.M. Dvoretskov ◽  
B.V. Schetanov ◽  
...  
Keyword(s):  
Composite Material ◽  
Thermal Cycling ◽  
Microstructural Analysis ◽  
Carbon Steels ◽  
Alloying Elements ◽  
Multilayer Composite ◽  
Initial State ◽  
Multilayered Composite ◽  
Partial Redistribution ◽  
Multilayer Composite Material

In this work the effect of five cycles of heating to a temperature of 1000 °C and three cycles of heating to a temperature of 1100 °C on the structure of multilayered composite material consisted of 100 alternating layers of 08H18 and U8 steels was investigated via the methods of microstructural analysis. It is shown that already in the initial state after rolling there was a redistribution of carbon between the layers of the material. Thermal cycling led to a partial redistribution of chromium in the material, a change in the structure and thickness of the layers.

Microwave Heating Visualization for Carbon Fibers Composite Material: Development of Tunable Microstrip Structures

2018 ◽  
Vol 66 (2) ◽  
pp. 883-888 ◽  
Author(s):  
Shant Arakelyan ◽  
Hanju Lee ◽  
Do-Suck Han ◽  
Arsen Babajanyan ◽  
Gerard Berthiau ◽  
...  
Keyword(s):  
Composite Material ◽  
Microwave Heating ◽  
Carbon Fibers ◽  
Material Development

Atomic structure of interface of intermetallic compound TiAl and nitride Ti2AIN using HREM and image processing

1991 ◽  
Vol 49 ◽  
pp. 570-571
Author(s):  
E. Sukedai ◽  
H. Mabuchi ◽  
H. Hashimoto ◽  
Y. Nakayama
Keyword(s):  
Mechanical Properties ◽  
Image Processing ◽  
Composite Material ◽  
Intermetallic Compound ◽  
Side Surface ◽  
High Resolution Electron Microscopy ◽  
Hexagonal Structure ◽  
Second Phase ◽  
Resolution Electron ◽  
Compound Tial

In order to improve the mechanical properties of an intermetal1ic compound TiAl, a composite material of TiAl involving a second phase Ti2AIN was prepared by a new combustion reaction method. It is found that Ti2AIN (hexagonal structure) is a rod shape as shown in Fig.1 and its side surface is almost parallel to the basal plane, and this composite material has distinguished strength at elevated temperature and considerable toughness at room temperature comparing with TiAl single phase material. Since the property of the interface of composite materials has strong influences to their mechanical properties, the structure of the interface of intermetallic compound and nitride on the areas corresponding to 2, 3 and 4 as shown in Fig.1 was investigated using high resolution electron microscopy and image processing.

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