{"id":39,"qualified_id":"DM39","process":"Diffusivity","process_types":[{"abbreviation":"MDF","description":"Diffusion"}],"method":"Theory","scaled":true,"material":"Cu","alloy":"","species":{"qualified_id":"F4","text":"T","charge":0},"comment":"Diffusion coefficient scaled from H to T by 1/sqrt(3).","refs":[{"qualified_id":"B40","authors":"J. Guthrie, L. Beavis, D. Begeal, W. Perkins","title":"Properties of hydride-forming metals and of multilayer hydrogen permeation barriers","journal":"Journal of Nuclear Materials","volume":"53","page_start":"313","page_end":"322","year":1974,"doi":"10.1016/0022-3115(74)90263-3","bibcode":"1974JNuM...53..313G","url":"https://dx.doi.org/10.1016/0022-3115(74)90263-3"}],"json_data":{"D0":{"value":6.12e-07,"units":"m2.s-1","unc":2.9e-08},"Ed":{"value":0.0952,"units":"eV","unc":0.00062},"Trange":[500,1000]}}