periclase

1. Periclase develops completely and its crystal body is big, with high combination rate, firm and tight structure, good refuses resistance and stable performance.
   方镁石发育完善、晶体大、直接结合率高、结构致密、抗渣性强、高温体积稳定优越。
2. Testing method for hydration of magnesia or periclase grain
   氧化镁和方镁石颗粒水化率测定方法
3. The free calcium oxide and the periclase formed in the converter smelting process are primary factor affect the steel slag long-term unstable.
   转炉冶炼过程中所形成的游离氧化钙和方镁石是影响钢渣长期不稳定性的主要因素。
4. A white solid mineral that occurs naturally as periclase; a source of magnesium.
   一种白色固体矿物，天然生成的方镁石，是镁的来源。
5. Nodularizing Facilities and Process with Injecting Passivated Granular Magnesium into Iron Melt testing method for hydration of magnesia or periclase grain
   钝化颗粒镁喷吹法球化处理设备及处理工艺
6. Development and application of corundum-periclase-carbon brick
   刚玉方镁石碳砖的研制与应用
7. On permissible periclase content of Portland cement clinker
   硅酸盐水泥熟料中方镁石允许含量的探讨
8. It is found that proper control of technological parameters in the calcination of the raw material ( high Al bauxite and magnesite) for making the synthetic magnesia-alumina spinel aggregate gives thermal-shock-resistent periclase spinel firebrick of high quality.
   结果表明，采用天然原料（高铝矾土和菱镁矿）煅烧合成的镁铝尖晶石料和制砖镁砂，控制合理的工艺参数，可以制得抗热震性优良、高温性能良好的方镁石-尖晶石砖。
9. The main crystalline phases in the matrix are also the periclase and spinel solid solution, which are bonded by calcium titanate and forsterite with high melting point.
   基质中主晶相仍为方镁石，次晶相为尖晶石固溶体、钛酸钙和少量的镁橄榄石。
10. Application outlook of periclase spinel brick for cement kiln
    水泥窑用方镁石-尖晶石砖应用进展
11. The relation between permissible periclase content and grain size of periclase crystals is a function of hyperbolic form under conditions that the free lime content is kept within a certain limit and the specific surface area of cement is fixed.
    在熟科中游离氧化钙较低时，水泥比面积固定的情况下，方镁石最大允许含量与方镁石粒度之间存在着双曲线类型的函数关系。
12. Effects of Al and Mg on property of periclase-spinel-carbon brick
    Al、Mg添加剂对方镁石-尖晶石-碳砖性能的影响
13. The analysis of XRD and SEM showed that the periclase was the main crystal phase of the sample matrix, and the spinel was the subordination crystal phase;
    XRD分析证明试样基质主晶相为MgO，次晶相为尖晶石；
14. Effect of ZrO_2 bearing additives on mechanical properties of periclase spinel refractories
    含ZrO2添加剂对方镁石-尖晶石耐火材料力学性能的影响
15. High-pressure and high-temperature phase equilibrium experiments show that silicates such as olivine and pyroxene will be decomposed into simple oxides like FeO ( wustite), MgO ( periclase) and SiO-2 ( stishovite) beneath the lower mantle ( 670 km).
    根据高温高压相平衡实验资料，橄榄石、辉石这样的硅酸盐矿物在地幔深部的压力条件下可以分解成简单氧化物，如FeO（方铁矿）、MgO（方镁石）以及SiO2（斯石英）等。
16. A comparative test of standard clay bricks, high alumina bricks, silica bricks and periclase bricks which were used as checkers in upper parts of regenerators has been conducted.
    本文介绍了用粘土砖、高铝砖、硅砖和方镁石砖作蓄热室上层格子体进行对比试验的情况。
17. Local compressibility in the vicinity of the cr~ ( 3+)-vacancy centre in periclase
    方镁石中Cr~（3+）-空位中心附近的局部压缩率
18. The film was mainly composed of and MgAl2O4 ( spinel) and MgO ( periclase, syn).
    微弧氧化膜层主要由尖晶石结构的MgAl2O4和方镁石结构的MgO组成。
19. Based on studying the periclase crystallization process in the electric magnesite melt mass, the temperature control from outside of the electric smelting furnace is the key factor to produce high-quality electric melt magnesite.
    对方镁石在电熔镁砂熔体中的结晶过程的研究表明，在电熔镁炉外部增加温控手段是获取优质电熔镁砂的关键。
20. Corundum-periclase-spinel castables with different bonding systems are studied.
    对比研究了水泥结合和水合氧化铝结合的刚玉-方镁石-尖晶石浇注料的性能。
21. The crystalline phases spinel, forsterite and periclase are all of high melting point and exhibit a better degree of direct bonding, therefore resulting in considerable increase of high temperature mechanical properties.
    结晶相都是高熔点的尖晶石、镁橄榄石和方镁石，并呈现良好的直接结合，高温力学性能又显著提高。
22. With the increase of ZrO 2 addition, the periclase and calcium zirconates exhibited different distribution features in the materials;
    随着配料中ZrO2含量的增加，合成料中方镁石和锆酸钙相呈现不同的分布特征；
23. The results showed that periclase bricks are suitable for upper parts of air regenerators and silica bricks obtain good results in upper parts of gas regenerators, while clay bricks and high alumina bricks are unsatisfactory.
    结果表明，空气蓄热室上层用方镁石砖、煤气蓄热室上层用硅砖的效果较好，而粘土砖和高铝砖的使用效果不够理想。
24. Analysis of Interatomic Separation-Pressure Relations for Alkali Halides and Periclase ( MgO)
    碱卤化合物和MgO的离子间距压强关系分析（英文）
25. The checkers made from the periclase as main crystal phase are cracked owing to high-temperature effect of periclase recrystal growth.
    以方镁石为主晶相的格子体其损毁的原因应归因于高温环境中碱蒸气作用下方镁石的再结晶长大，以及中温条件下液态芒硝的侵蚀作用；
26. The grain growth kinetics of lime and periclase phase in SMD
    合成镁白云石中CaO和MgO晶粒生长动力学
27. Periclase generally growth with the intermediate phase, the most size of the periclase is 14 μ m. With the increasing content of MgO in clinker, cement setting time, strength is decreased.
    方镁石一般和中间相伴随生长，尺寸大约为14μm。随着熟料中MgO含量的增加，水泥凝结时间延长，强度下降。
28. In addition, chromium tends to form solid solution or calcium chromate combined with periclase and merwinite in slags with high basicity.
    此外，高碱度条件下的铬易跟方镁石或镁硅钙石形成固溶体或是铬酸钙，这会导致铬的渗出。
29. The results show that: ( 1) The content of periclase in clinker increased with the MgO, and its increasing rate will slow down when the MgO content is high enough.
    结果表明：（1）熟料中MgO含量提高，方镁石含量也随之提高，当熟料中MgO含量较高时，方镁石含量的增加速度会减慢。
30. Periclase in the clinker exists mainly around the hole.
    熟料中方镁石主要分布在孔洞周围。

noun

1. a white solid mineral that occurs naturally as periclase

   Synonym:    magnesiamagnesium oxide