The effect of tungsten content on the structure of Ni W coating has been studied by XRD and SEM techniques. It is found that the increase of W content in alloy coating results in the increase of crystal lattice distor...The effect of tungsten content on the structure of Ni W coating has been studied by XRD and SEM techniques. It is found that the increase of W content in alloy coating results in the increase of crystal lattice distortion which is the main factor in formation of amorphous structure of the coating. With the tungsten content greater than 44% an amorphous structure consisted of long range disorder and short range order has been observed.展开更多
This paper reports the reduction of 1,3-bis(2-nitro phenoxy)-2-propanol,1,3-bis(nitrophenoxy)-2-propanol and 1,3-bis(4-nitrophenoxy)-2-propanol to the corresponding diamine by the NH 2NH 2·H 2O-FeCl 3·6H 2O-...This paper reports the reduction of 1,3-bis(2-nitro phenoxy)-2-propanol,1,3-bis(nitrophenoxy)-2-propanol and 1,3-bis(4-nitrophenoxy)-2-propanol to the corresponding diamine by the NH 2NH 2·H 2O-FeCl 3·6H 2O-C system.All these diamine compounds were identified by elemental analysis,IR spectra, 1HNMR and MS.展开更多
文摘The effect of tungsten content on the structure of Ni W coating has been studied by XRD and SEM techniques. It is found that the increase of W content in alloy coating results in the increase of crystal lattice distortion which is the main factor in formation of amorphous structure of the coating. With the tungsten content greater than 44% an amorphous structure consisted of long range disorder and short range order has been observed.
文摘This paper reports the reduction of 1,3-bis(2-nitro phenoxy)-2-propanol,1,3-bis(nitrophenoxy)-2-propanol and 1,3-bis(4-nitrophenoxy)-2-propanol to the corresponding diamine by the NH 2NH 2·H 2O-FeCl 3·6H 2O-C system.All these diamine compounds were identified by elemental analysis,IR spectra, 1HNMR and MS.
