An antistatic agent of temary block co-polyester-ether-metalion chip(DC) and cationic dyeable polyester chip(CDPET)were produced by Dalian Institute of Light Indus-try．The melting point of DC was 224℃．The concentra...An antistatic agent of temary block co-polyester-ether-metalion chip(DC) and cationic dyeable polyester chip(CDPET)were produced by Dalian Institute of Light Indus-try．The melting point of DC was 224℃．The concentration of SIPM was 2％mol in CDPET．The intrinsic viscosity of CD-PET was 0．58dL／g and the melling point was 246℃．展开更多
Electroless Ni-P-Zn alloys deposited from alkali bath were investigated in this paper. The deposition bath contained nickel sulfate, zinc chloride and hypophosp hate. The process parameters, such as temperature, pH an...Electroless Ni-P-Zn alloys deposited from alkali bath were investigated in this paper. The deposition bath contained nickel sulfate, zinc chloride and hypophosp hate. The process parameters, such as temperature, pH and zinc salt concentratio n were presented and discussed. The microstructure of the coatings was studied b y XRD and SEM. The cathode glowing discharge characters of Ni-P-Zn depositions w ere studied with luminous Neon lamps. Electrodes deposited by electroless Ni-P a lloys were apt to sputter during luminous working hours. Electroless Ni-P-Zn dep ositions improved the discharge characters of the electrodes. With the concentra tion of zinc in the deposition rising to 4wt%, electrode sputter was largely res trained. The thickness of the deposition also influenced the discharge character s of the electrode. To avoid electrode sputter, the concentration of zinc has to rise with the thickness of the depositions.展开更多
The temperature dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer is discussed.In this model,the temperature dependence comes from the thermal instability of t...The temperature dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer is discussed.In this model,the temperature dependence comes from the thermal instability of the system states and the temperature modulated relative magnetic parameters.Morever,the thermal fluctuation of orientations of easy axes of antiferromagnetic grains at preparing has been considered.From the present model,the experimental results can be illustrated qualitatively for available magnetic parameters.Based on our discussion,we can conclude that soft ferromagnetic layer coupled by hard antiferromagnetic layer may be very applicable to design magnetic devices.In special exchange coupling,we can get high exchange bias and low coercivity almost independent of temperature for proper temperature ranges.展开更多
文摘An antistatic agent of temary block co-polyester-ether-metalion chip(DC) and cationic dyeable polyester chip(CDPET)were produced by Dalian Institute of Light Indus-try．The melting point of DC was 224℃．The concentration of SIPM was 2％mol in CDPET．The intrinsic viscosity of CD-PET was 0．58dL／g and the melling point was 246℃．
文摘Electroless Ni-P-Zn alloys deposited from alkali bath were investigated in this paper. The deposition bath contained nickel sulfate, zinc chloride and hypophosp hate. The process parameters, such as temperature, pH and zinc salt concentratio n were presented and discussed. The microstructure of the coatings was studied b y XRD and SEM. The cathode glowing discharge characters of Ni-P-Zn depositions w ere studied with luminous Neon lamps. Electrodes deposited by electroless Ni-P a lloys were apt to sputter during luminous working hours. Electroless Ni-P-Zn dep ositions improved the discharge characters of the electrodes. With the concentra tion of zinc in the deposition rising to 4wt%, electrode sputter was largely res trained. The thickness of the deposition also influenced the discharge character s of the electrode. To avoid electrode sputter, the concentration of zinc has to rise with the thickness of the depositions.
文摘The temperature dependence of exchange bias and coercivity in a ferromagnetic layer coupled with an antiferromagnetic layer is discussed.In this model,the temperature dependence comes from the thermal instability of the system states and the temperature modulated relative magnetic parameters.Morever,the thermal fluctuation of orientations of easy axes of antiferromagnetic grains at preparing has been considered.From the present model,the experimental results can be illustrated qualitatively for available magnetic parameters.Based on our discussion,we can conclude that soft ferromagnetic layer coupled by hard antiferromagnetic layer may be very applicable to design magnetic devices.In special exchange coupling,we can get high exchange bias and low coercivity almost independent of temperature for proper temperature ranges.
