THE PRELIMINARY STUDY OF THE FIRST WALL MATERIAL IN FUSION DEVICE
 
                 
                
                    
                                        
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Graphical Abstract
 
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Abstract
    We have preliminarily studied the vacuum property and sputtering property of thd materials which are the siliconizde graphite of HL-1M and the materials developed by Beijing Science and Technology University, respectively. It turned out that the material of (B 4C/Cu) and SiC/C are suitable for plasma facing materials.
 
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