GD55的推出确实让人感受了松下这一个东瀛厂商在轻与小方面所具备的工艺实力,但从市场反应及接受程度来看,GD55的受欢迎程度远不如同期推出的小弟GD68,无论男女,在犹豫之后大都会选择后者。为什么会出现这样的情况呢?归根到底就是因为G ...GD55的推出确实让人感受了松下这一个东瀛厂商在轻与小方面所具备的工艺实力,但从市场反应及接受程度来看,GD55的受欢迎程度远不如同期推出的小弟GD68,无论男女,在犹豫之后大都会选择后者。为什么会出现这样的情况呢?归根到底就是因为G D 5 5缺乏了时下的一个重要性能参数——彩屏,无论蓝屏在8250时代是如何地耀煌.但在现今已经沦落为鸡肋,而在价格相等的情况下,虽然存在着体积与重量的优势,但是人们更愿意过上有更好视觉享受的彩屏生活,不过就因此而错过了GD55那娇小玲珑的外观又实在太可惜了点,还好G50的出现为我们提供了一个圆满的解决方案.展开更多
The magnetic properties and magnetocaloric effects of amorphous and crystalline Gd55Co35Ni10 ribbons are investigated.A main phase with a Ho 12 Co 7-type monoclinic structure(space group P21/c) and a minor phase with ...The magnetic properties and magnetocaloric effects of amorphous and crystalline Gd55Co35Ni10 ribbons are investigated.A main phase with a Ho 12 Co 7-type monoclinic structure(space group P21/c) and a minor phase with a Ho4Co3-type hexagonal structure(space group P63/m) are obtained for crystalline ribbon after annealing.The amorphous ribbons order ferromagnetically and undergo a second-order transition at 192 K.For crystalline Gd55Co35Ni10 ribbons,two magnetic phase transitions occur at 158 and 214 K,respectively.The peak value of-△SM under a field change of 0-5 T is 6.5 J/kg K at 192 K for amorphous Gd55Co35Ni10 ribbons.A relatively large magnetic entropy change(～5.0 J/kg K) under a field change of 0-5 T for the crystalline Gd55Co35Ni10 ribbons is obtained in the temperature interval range of 154-214 K.The large platform of magnetic entropy change and the negligible thermal/magnetic hysteresis loss mean the crystalline Gd55Co35Ni10 compound can satisfy the requirement of the Ericsson-type refrigerator working in the temperature range from 154K to 214K.展开更多
文摘GD55的推出确实让人感受了松下这一个东瀛厂商在轻与小方面所具备的工艺实力,但从市场反应及接受程度来看,GD55的受欢迎程度远不如同期推出的小弟GD68,无论男女,在犹豫之后大都会选择后者。为什么会出现这样的情况呢?归根到底就是因为G D 5 5缺乏了时下的一个重要性能参数——彩屏,无论蓝屏在8250时代是如何地耀煌.但在现今已经沦落为鸡肋,而在价格相等的情况下,虽然存在着体积与重量的优势,但是人们更愿意过上有更好视觉享受的彩屏生活,不过就因此而错过了GD55那娇小玲珑的外观又实在太可惜了点,还好G50的出现为我们提供了一个圆满的解决方案.
基金supported by the Guangdong Provincial Science and Technology Program(Grant Nos.2010B050300008,2009B090300273 and 2007B010600043)the Guangzhou Municipal Science and Technology Program(Grant No.12F582080022)+1 种基金the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry (Grant No.x2clB7120290)the Fundamental Research Funds for the Central Universities(Grant Nos.2011ZM0014 and 2012ZZ0013)
文摘The magnetic properties and magnetocaloric effects of amorphous and crystalline Gd55Co35Ni10 ribbons are investigated.A main phase with a Ho 12 Co 7-type monoclinic structure(space group P21/c) and a minor phase with a Ho4Co3-type hexagonal structure(space group P63/m) are obtained for crystalline ribbon after annealing.The amorphous ribbons order ferromagnetically and undergo a second-order transition at 192 K.For crystalline Gd55Co35Ni10 ribbons,two magnetic phase transitions occur at 158 and 214 K,respectively.The peak value of-△SM under a field change of 0-5 T is 6.5 J/kg K at 192 K for amorphous Gd55Co35Ni10 ribbons.A relatively large magnetic entropy change(～5.0 J/kg K) under a field change of 0-5 T for the crystalline Gd55Co35Ni10 ribbons is obtained in the temperature interval range of 154-214 K.The large platform of magnetic entropy change and the negligible thermal/magnetic hysteresis loss mean the crystalline Gd55Co35Ni10 compound can satisfy the requirement of the Ericsson-type refrigerator working in the temperature range from 154K to 214K.
