为了揭示14H相的形成机理,制备并研究了18R LPSO单相Mg-Y-Zn(简称S18)合金经773 K退火100 h的显微组织演变。结果表明:铸态S18合金主要由18R相组成(其体积分数高于93%),并含有少量的W相和α-Mg相。退火时,S18合金中的18R相保持...
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摘要 随着工农业的快速发展,环境污染问题日益严重,土壤重金属污染是主要的环境污染之一.镉(Cd)和锌(Zn)是目前危害农田最严重的重金属污染之一,不同作物品种对Cd和Zn的积累和耐性存在明显差异.本研究采用盆栽土培方法,以8个水稻(Oryz... 关键词镉...
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Copper mold casting was employed to fabricate Mg80 Zn16-x Ca4Alx( x =2,4,6) and Mg75Zn17Ca4Al4 high strength as-cast ... 关键词 Mg-Zn-Ca-Al alloys / mechanical properties / microstructure 被引量 2 收藏 全部来源 求助全文 知网 ResearchGate...
Extruded Mg–Zn–Ca–Mn alloys with low yield anisotropy .W. Xu,K. Oh-ishi,H. Sunohara,... - 《Materials Science & Engineering A》 - 2012 - 被引量: 23 Plastic anisotropy and strain-hardening behavior of Mg–6%Li–1%Zn al...
通过大田试验研究了6个不同浓度Cd,Cu,Zn复合污染下小麦的富集特征.结果表明,随着小麦生长时间推移,各试验区小麦根中Cu的含量增加,Cd的含量是一个先上升,后下降,再上升的过程,而Zn的含量基本上都是随小麦的生长而降低;茎叶中Cd.....
Zn对细胞保护作用机理的研究 来自维普网 作者章净霞,姚惠英摘要 应用扫描质子微控针和同步辐射荧光分析技术测定了细胞中元素的分布和组成,为确定Zn是细胞结构成分提供了直接的实验依据,用上述核技术结合有关生化指标,分析测定了正常和损伤细胞(脂质过氧化损伤)中Fe,Zn...
CdZnTe:In single crystals were annealed in CdZn vapors through a method involving a high-temperature step and a low-temperature step in sequence. The effec... G Yang,W Jie,Q Zhang - 《Journal of Materials Research》 ...
A scheme of rational fertilization of Zn, P, N for rice—wheat rotation was developed, the nutrient effects of Cl on rice and wheat in the combined application of Zn, N and P were discussed. 展开 ...