查询词典 Zr

XRD analysis showed most Zr(NO3)4*5H2O decomposed to ZrO(NO3)2 during the ammonolysis. The activities of Metal Oxides for the reaction were estimated.

催化剂重复使用后活性下降很快，XRD 表征显示胺解过程中大部分 Zr(NO3)4*5H2O 分解为ZrO(NO3)2。

Trace element exhibits enrichment of LREE and antipathic elements. Trace element spidergram of obvious right deviation and extremely high containing of Sr, Zr and Hf are different from the negative anomaly of dunite which lies the bottom of ophiolite, but has weak positive anomaly.

微量元素显示LREE和不相容元素的富集，右倾的微量元素分布模式，异常高的Sr含量，Zr、Hf不同于蛇绿岩底部纯橄榄岩的负异常，而显示出微弱正异常，这些特征都与经典蛇绿岩层序底部的地幔橄榄岩不同。

The atomic structure model of phase Zr2Ni containing icosahedron cluster in Zr-based amorphous alloys were constructed by computer programming.

用计算机编程构造了Zr基非晶合金包含二十面体原子团簇的Zr2Ni晶体相。

All the compositions satisfy the same electron concentration $e/a$=1.5 and average atomic radius 0.1496 nm as those of the Zr$_{60}$Al$_{20}$Ni$_{20}$ bulk metallic glasses.

根据等电子浓度和等原子尺寸判据设计了四种Zr--Ti--Al--Ni系合金，并用激光诱导燃烧合成的方法制备了材料。

The effects of calcination temperature, coating method and the ratio of CTAB to Zr were examined.

考察了焙烧温度、催化剂的涂布方法和CTAB/Zr的比例对催化剂性能的影响。

The reaction mechanism between SCF and ZrO2 was proposed: the solid solution of Zr into SCF lattice occurred as well as the solid state reaction to form SrZrO3 phase after calcination, and with the further increase of the temperature, the SrZrO3 phase was resorbed into the perovskite phase till the limit of solid solubility of Zr was reached.

随着温度的进一步升高，SrZrO3又固溶到钙钛矿晶相，直至达到Zr的固溶限。

By sulfating synthesized Zr-HMS zeolite, a SO〓/Zr-HMS was prepared. It is proved that it possess superacidity by the experimental results of indicator method, NH〓-TPD, TG and IR.

硫酸化处理后制得SO〓／Zr—HMS，指示剂法测定它的酸强度大于-13.75；NH〓—TPD，TG和IR表征也证明它具有超强酸性。

Al-Zn-Mg-Cu-Zr aluminum alloys were prepared by electromagnetic casting and direct chill casting, respectively. The effects of electromagnetic field on as-cast microstructure and alloy elements solid solubility inside crystals of Al-Zn-Mg-Cu-Zr aluminum alloy were investigated.

摘 要：分别采用电磁铸造和普通连铸技术制备Al-Zn-Mg-Cu-Zr合金，研究电磁场对合金显微组织、合金元素晶内固溶度的影响。

Al-Zn-Mg-Cu-Zr aluminum alloys were prepared by electromagnetic casting and direct chill casting, respectively. The effects of electromagnetic field on as-cast microstructure and alloy elements solid solubility inside crystals of Al-Zn-Mg-Cu-Zr aluminum alloy were investigated.

分别采用电磁铸造和普通连铸技术制备Al-Zn-Mg-Cu-Zr合金，研究电磁场对合金显微组织、合金元素晶内固溶度的影响。

The results show that chromium and zirconium can react with O2 and N2 from protective atmosphere; the zirconia and magnesia have a good stability for Cr and Zr, therefore, they can be used as crucible and furnace lining materials for Cu-Cr-Zr alloy melting.

结果表明，在熔炼温度下，炉气中微量氧气和氮气都能与合金组元中的铬和锆发生化学反应而使其烧损；金属氧化物ZrO2和MgO等对于铬和锆具有良好的化学稳定性，可以作为熔炼Cu-Cr-Zr系合金的坩埚和炉衬材料。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。