我们预期这么浓的蒸气会扩散到固态硼的内部,然后产生颗粒状的硼化镁。
We expected that this dense vapor would diffuse into the solid boron, producing pellets of MgB2.
在低磁场下,硼化镁的临界电流密度与三铌化锡相当,但是在较高的磁场下却下降得很快。
The critical current density of pure MgB2 is comparable to that of triniobium tin at low magnetic fields but falls off much more rapidly at higher fields.
不出所料,在短短的两个小时内,我们发现这个制程确实能制造出零散烧结状的高纯度硼化镁颗粒(看起来像砂岩)。
Sure enough, we found that in as little as two hours this process produced very high purity MgB2 in the form of a loosely sintered pellet (like sandstone).
一般选用结晶水较多的硼化物、锌化物及氢氧化铝、氢氧化镁。
Generally choose gesso more boron hydrates, zinc carbide and aluminum hydroxide, magnesium hydroxide.
实验确定了硼的最大吸收波长及氧化镁中硼含量的测定方法。
To measure the boron content in magnesia, the most absorption wavelength of boron had been determined.
阐述了用氢氧化镁将海水及盐湖卤水中的硼、镁同时除去的方法,并对其反应条件进行了研究。
A method of removing boron and magnesium from brine from sea and salt lakes is discussed, and conditions of the reaction are also studied in this paper.
针对海卤水沉淀反应过程中氢氧化镁对硼化物的吸附现象以及树脂法对卤水脱硼进行了研究。
The removal of boron in brine was researched, in which magnesium hydroxide produced in seawater or brine and resin were adopted respectively.
研究表明:氧化镁的活性和煅烧温度、时间及氧化镁中的硼含量有关。
It shows that the calcined temperature, calcined time and boron content relate with the activity of magnesium oxide.
研究表明:氧化镁的活性和煅烧温度、时间及氧化镁中的硼含量有关。
It shows that the calcined temperature, calcined time and boron content relate with the activity of magnesium oxide.
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