前驱粉团聚度对钼粉及后期制品性能的影响

通过不同团聚度前驱粉钼酸铵在制粉、压型、烧结以及拉拔工艺过程中存在的差异进行了对比分析，结果表明前驱粉的团聚度对钼金属材料制备的各个环节都有影响，且随着团聚度的提高，影响程度提高。同时，对粉体团聚的机理进行了分析，提出了消除团聚的意见和建议，指出非团聚前驱粉的研究和工业应用对提高钼金属材料性能具有重要意义。     

电弧炉熔炼钛渣的物相组成及其与酸溶性的关系

电弧炉熔分金属化率大于９０％的球团，所得钛渣的∑Ｔｉ＿２Ｏ＿３／∑ＴｉＯ＿２在０．３～０．５，其酸解率较高。这是因为渣中有更多的黑钛石ｍ［（Ｍｇ，Ｆｅ，Ｍｎ）Ｏ·２ＴｉＯ＿２］·ｎ［（Ｔｉ，Ａｌ）＿２Ｏ＿３·ＴｉＯ＿２］，而黑钛石易于被酸溶解。若钛渣中有ＭｇＴｉ＿２Ｏ＿５型黑钛石，则可提高酸解率。     

EMPIRICAL AND THEORETICAL LIMITATIONS OF THE TWO-FACTOR HYPOTHESIS OF JOB SATISFACTION.

THE SALIENT REASONS FOR CURRENT JOB SATISFACTION WERE COMPARED FOR HIGH- AND LOW-SATISFACTION RESPONDENTS (613 TECHNICIANS) IN THE FRAMEWORK OF HERZBERG'S 2-FACTOR HYPOTHESIS. AN ALTERNATE NOTION STATED THAT "MOTIVATORS" ARE THE PRIME INFLUENCERS OF SATISFACTION WHILE "HYGIENE" FACTORS ACT TO LIMIT COMPLETE SATISFACTION FOR HIGHS AND COMPLETE DISSATISFACTION FOR LOWS. THE DATA, WHILE STRICTLY SUPPORTING NEITHER FORMULATION, WERE MORE ADEQUATELY COORDINATED WITH THE ALTERNATE CONCEPTION. THE MOUNTING BODY OF CONTRADICTORY RESULTS AND THE INABILITY OF THE 2-FACTOR THEORY TO HANDLE DEVIANT CASES CALL FOR A FRESH LOOK AT THE SATISFIERS/DISSATISFIERS CONCEPT. A NEW CONSTRUCT IS OFFERED IN TERMS OF ROTTER'S SOCIAL LEARNING THEORY. (16 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

PSYCHOPATHOLOGY AND MARITAL ROLE DISTURBANCE: A TEST OF THE THARP-OTIS DESCRIPTIVE HYPOTHESIS.

R. G. THARP AND G. D. OTIS (SEE 40:12) HAVE PROPOSED A THEORY AND TECHNIQUE FOR THERAPEUTIC INTERVENTION IN FAMILIES WHICH ATTRIBUTES "PSYCHOPATHOLOGY" TO A SOCIAL SYSTEM DISORDER, CHARACTERIZED BY DISTURBANCES IN FAMILY ROLES. IT WAS HYPOTHESIZED THAT INDIVIDUAL PSYCHIATRIC PATIENTS AND THEIR SPOUSES EXPERIENCE MARITAL ROLE DISTURBANCE TO A GREATER DEGREE THAN THE AVERAGE NONCLINICAL POPULATION. KELLY-THARP MARRIAGE ROLE QUESTIONNAIRES WERE ADMINISTERED TO 35 PSYCHIATRIC PATIENTS, THEIR SPOUSES, AND TO NORMAL SS AND THEIR SPOUSES. DISCREPANCIES BETWEEN ROLE EXPECTATIONS AND ROLE ENACTMENTS OF THE GROUPS WERE SIGNIFICANT IN THE HYPOTHESIZED DIRECTION FOR 4 OF THE 5 AREAS OF ROLE FUNCTIONING. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

JOB SATISFACTION AND THE DESIRE FOR CHANGE.

QUESTIONNAIRE DATA ON OFFICE EMPLOYEES' GENERAL READINESS FOR CHANGE, SATISFACTION WITH EXISTING AMOUNTS OF 14 JOB ASPECTS, AND DESIRE FOR JOB-ASPECT CHANGE WERE USED IN TESTING THE HYPOTHESIS THAT A PERSON'S DESIRE FOR SPECIFIC CHANGES IS GOVERNED NOT ONLY BY THE DISCREPANCY BETWEEN THE ATTRACTIVENESS TO HIM OF EXISTING AND POTENTIAL JOB CHARACTERISTICS BUT ALSO BY HIS ASSESSMENT OF THE VERY PROCESS OF CHANGE. THE HYPOTHESIS IS UPHELD BY RESULTS OF MULTIPLE-REGRESSION ANALYSES OF AGGREGATE SCORES AND OF DATA FOR SEVERAL INDIVIDUAL JOB ASPECTS. (27 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

INTERACTION TESTING IN THE MEASUREMENT OF MARITAL INTELLIGENCE.

THE INTELLECTUAL FUNCTIONING OF 50 MARRIED COUPLES, EACH HAVING 1 PSYCHIATRIC DAY HOSPITAL PATIENT-SPOUSE, IS DESCRIBED AND EVALUATED BY THE USE OF INTERACTION TESTING, A TECHNIQUE WHICH INCLUDES THE TESTING OF THE INDIVIDUAL SPOUSES AND THE MARRIED PAIRS ON A SET OF INTELLIGENCE TEST PROBLEMS. MARITAL INTELLIGENCE IS DEFINED AS THE ABILITY OF THE COUPLE TO SOLVE THESE PROBLEMS AND IS MEASURED BY THE IQ SCORE ACHIEVED BY THE COUPLE AS A UNIT. THE RELIABILITY OF INTERACTION IQ TEST SCORES, THE NATURE OF HUSBAND AND WIFE CONTRIBUTIONS TO MARITAL "INTELLIGENCE," AND THE RELIABILITY OF A SCORING SYSTEM OF INTERACTION PROCESS OR DECISION MAKING INFERRED FROM A COMPARISON OF COUPLE VS. INDIVIDUAL PRODUCTS ARE CONSIDERED. INTERACTION TESTING APPEARS TO BE A FEASIBLE AND RELIABLE TECHNIQUE FOR THE INVESTIGATION OF MARITAL INTELLIGENCE AND DECISION MAKING, AND OFFERS TO BE OF USE IN FAMILY DIAGNOSIS AND RESEARCH. (16 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

THREE LEVELS OF STAFF INTERVENTION AND THEIR EFFECT ON INPATIENT SMALL GROUP MORALE, LEADERSHIP, AND PERFORMANCE.

EXAMINED THE EFFECTS OF 3 LEVELS OF STAFF DISCIPLINARY INTERVENTION ON SMALL GROUP MORALE, PERFORMANCE, AND LEADERSHIP IN AN INPATIENT WARD OF A MENTAL HOSPITAL. 89 CHRONIC SCHIZOPHRENICS SERVED AS SS. RESULTS INDICATE THAT THE 3 AREAS OF GROUP FUNCTIONING WERE NOT DIFFERENTIALLY MODIFIED BY THE TREATMENT CONDITIONS. THE FINDINGS ARE DISCUSSED IN TERMS OF THE CHARACTER OF STAFF REWARD AND PUNISHMENT OF GROUP ACTIONS AND MORE GENERALLY IN TERMS OF THE STAFF'S SUPERVISORY ROLE. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

铝含量对Mg-Al-Zn-Si-Sb-RE合金的组织和强度与塑性的影响

研究了铝含量对Mg-Al-Zn-Si-Sb-RE镁合金的组织以及室温与150℃下强度和塑性的影响规律。采用光学显微镜、扫描电子显微镜(SEM)和X射线衍射分析(XRD)手段对合金试样的组织结构和断口形貌特征进行了分析。结果表明,合金中的强化相为Al2Mg17,随Al含量的增加强化相沿晶分布的倾向增加。合金的强度随Al含量的增加而提高,特别是屈服强度,但塑性随Al含量的增加而下降。     

THE EFFECT OF SURFACE CHARACTERISTICS ON THE SINTERING OF URANIUM AND BERYLLIUM POWDERS

Abstract

Studies of the sintering of uncompacted uranium powders in vacuum have shown that sintering behaviour is markedly affected by the nature of the surface films on the powder. Of the variables in the powder production route that might affect the nature of the surface films, the leaching stage is the most important.

The deleterious effect of surface contaminants on the vacuum-sintering behaviour of beryllium is demonstrated. During the development of a technique for the production of a stable powder from electrolytic flake, the nature of the leaching treatment again proved to have a marked influence on the sintering behaviour of the resultant powder.

Both sets of investigations were hampered by lack of methods for identification of surface films on powders.     

形变热处理工艺对马氏体和贝氏体金相组织的影响

在热模拟试验机上模拟了形变热处理工艺 ,并对淬火后获得的马氏体和贝氏体组织进行了观察分析。结果表明 :奥氏体未结晶区变形并淬火后 ,马氏体包的尺寸增大 ,而马氏体束的尺寸明显减小并发生弯曲。在贝氏体相变中 ,变形促进了铁素体的析出 ,且贝氏体晶粒细化的效果非常明显     

Al-Ti-C对铝合金组织性能影响的分析

以较为常用的6063铝合金为研究对象，文章分析了Al—Ti—C中间合金对其组织及性能的影响，并从理论上分析了Al—Ti—C的作用机理。结果表明，Al—Ti—C对合金组织具有强烈的细化作用，同时对其性能也有一定影响。最后对实验结果进行了分析与总结。     

EFFECT OF STIMULUS, BACKGROUND, PERSONALITY, AND SCORING SYSTEM ON THE MANIFESTATION OF HOSTILITY ON THE TAT.

A FIELD-APPROACH INVESTIGATION ON THE DETERMINATION OF TAT HOSTILITY IN STUDENTS INVOLVED THE USE OF SUCH INDEPENDENT VARIABLES AS THE STIMULUS (3 LEVELS OF SCALED PICTORIAL HOSTILITY), BACKGROUND ("IMPERSONAL" OR "LOOK YOUR BEST" INSTRUCTIONS), AND PERSONALITY (PEER AND SELF-CONCEPT EVALUATION AS HOSTILE OR FRIENDLY). 9 SCORING SYSTEMS OF HOSTILITY WERE EXAMINED VIA A TYPE III ANALYSIS OF VARIANCE. THE STIMULUS WAS THE PRIME DETERMINANT. THE SELF-CONCEPT WAS CONSIDERABLY MORE IMPORTANT THAN THE OBJECTIVE POSSESSION OF HOSTILITY. LITTLE DIFFERENCE IN IMPORTANCE WAS FOUND FOR 7 OF THE 9 SCORING SYSTEMS. ALL STIMULUS LEVELS INFLUENCED THE RESPONSE, BUT VARIED WIDELY IN EXTENT OF INFLUENCE ACCORDING TO THE SCORING SYSTEM AND INTERACTION WITH OTHER VARIABLES. (18 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

微细钼粉的团聚及其对钼丝加工的影响

对生产细钼丝用微细钼粉的形貌和结构进行了显微分析和研究。结果发现,微细钼粉的团聚结构,其中包括晶粒界面、钼粉颗粒界面和团聚钼粉的表面不但对钼氧化物的还原速度,而且对钼粉的加工性能发生了重要的影响。研究结果表明,微细钼粉的团聚度主要取决于其母体所由生成时包括加料方式在内的酸度控制技术。为了生产轻微团聚、粒度均匀的微细钼粉以便为细钼丝生产提供优秀原料,应当严格控制生产β型四钼酸铵的酸度条件。     

铁矿粉粒度组成对混匀料制粒效果的分析与探讨

通过对多种铁矿粉粒度组成进行测定,归纳总结了邯钢烧结常用铁矿粉粒度分布规律,并在此基础上通过大量试验,对混匀料制粒前后粒度组成的变化规律进行了分析和探讨;结果认为:烧结中可将核粉比作为结构优化的参数加以应用.     

钢包吹氩与包衬耐火材料对钢中夹杂物的影响

通过非水溶液电解、扫描电镜、图像仪等手段,研究钢包吹氩与耐火材料对钢中夹杂物的影响。找出了夹杂物数量、尺寸、组成、分布和类型在不同工序中的变化规律,提出了改善钢的洁净度的建议。     

再磨与擦洗对提高钼精矿质量影响试验研究

就再磨与擦洗对提高钼精矿质量的影响进行了试验研究。结果表明 ,增加Ⅲ段再磨、Ⅳ段擦洗作业可有效地提高钼精矿质量     

钒对白口铸铁组织和性能的影响

对４种不同含钒量的白口铸铁实施了４种不同规范的热处理，并进行了机械性能测试和耐磨试验。分析了钒在铸铁中的存在状态及其对白口铸铁组织及性能的影响。     

CSP钢水钙铝比对中包塞棒开口度的影响

介绍了CSP薄板坯连铸连轧工艺中中包塞棒开口度控制机理,结合生产实际,分析了中包塞棒开口度上涨和下降变化量与浇注钢水钙铝比的对应关系,同时提出了中包钢水钙铝比控制在0.09～0.14,钙含量控制在10～22 ppm的技术标准。工艺优化后,有效减少了中包塞棒开口度变化导致的停浇事故,为CSP薄板坯连铸机生产工艺顺行和钙铝比控制提供了参考。     

热处理温度对钼靶材微观组织和性能的影响

通过定量金相技术和显微硬度测试等方法,研究了热处理温度对钼溅射靶材的微观组织、硬度及I-U曲线的影响规律。研究结果表明,钼靶材晶粒尺寸随着热处理温度的升高而增大,而靶材硬度随之呈下降趋势。钼靶材在1200℃进行1 h热处理,晶粒尺寸分布最均匀。所研究钼靶材的I-U曲线均符合Thornton经验公式,热处理温度为1200℃的靶材具有最佳的磁控溅射放电性能。