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Tribo‐performance assessment of milled fly ash brake friction composites

机译：摩擦粉煤灰制动摩擦复合材料的摩擦性能评估

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Abstract > The milled fly ash (MFA) was attained by mechanical ball milling of raw fly ash (RFA) and was characterized for changes in particles morphology, size, and specific surface area (SSA). The RFA and MFA, varying in wt% from 20 to 35, were exclusively used for composite fabrication using compression molding machine. The milled fly ash composite (MFC) specimens were assessed for the tribo‐performance in comparison with raw fly ash composite (RFC) and commercial truck brake composite (CTBC) specimens under the loads ranging from 125 to 200?N at 3.3 and 5 m/s of sliding velocity. The characterization study showed that the glassy and spherical RFA particles of average size 86?μm changed to rough and irregular size of 15?μm, after ball milling. The SSA per unit bulk volume was found to increase from 138.2 to 1009 m 2 /m 3 . The tribo‐study revealed that the fly ash milling significantly improved the friction coefficient of MFC specimens, especially at 35?wt% of MFA, as compared to RFC and CTBC specimens. The increase in fly ash content (raw as well as milled) to 35?wt% greatly increased the specific wear rate (SWR) at both the sliding velocities. The worn surfaces of RFC specimens were found to be more damaged than the MFC specimens as revealed from SEM results. The appreciable frictional characteristics of MFC specimens encourage the use of MFA in brake friction composites; however, the changes in the friction formulation are required from SWR point of view. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 通过机械球磨机研磨原料粉煤灰（RFA）获得碾磨的粉煤灰（MFA），其特征在于颗粒形态，尺寸和比表面积（SSA）的变化。 RFA和MFA在20至35中改变，仅使用压缩成型机用于复合制造。与摩擦灰复合（RFC）和商业卡车制动复合物（CTBC）标本在3.3和5米的载荷下，评估研磨的粉煤灰复合材料（MFC）标本。 / s滑动速度。表征研究表明，在球磨后，平均尺寸为86Ω·μm的玻璃和球形RFA颗粒变为粗糙和不规则的15Ωμm。发现每单位散装量的SSA从138.2增加到1009米 2 </ sup> / M. 3 </ sup> 。摩擦研究表明，与RFC和CTBC标本相比，粉煤灰铣削显着提高了MFC标本的摩擦系数，特别是在35℃的MFA中。粉煤灰含量的增加（RAW和研磨）至35°WΔwt％大大增加了滑动速度的特定磨损率（SWR）。发现RFC样本的破旧表面比SEM结果所显示的MFC样本更损坏。 MFC标本的可观摩擦特性鼓励在制动摩擦复合材料中使用MFA;然而，从SWR的角度来看，需要摩擦制剂的变化。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-29566/'>《Polymer Composites》</a> <b style="margin: 0 2px;">|</b><span>2020年第2期</span><b style="margin: 0 2px;">|</b><span>共12页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/7852.html" title="增强塑料、填充塑料">增强塑料、填充塑料;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=brake friction composites&option=203" rel="nofollow">brake friction composites;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=mechanical ball milling&option=203" rel="nofollow">mechanical ball milling;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=raw and milled fly ash&option=203" rel="nofollow">raw and milled fly ash;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=tribo‐performance&option=203" rel="nofollow">tribo‐performance;</a> </p> <div class="translation"> 机译：制动摩擦复合材料;机械球铣削;原料和碾碎的粉煤灰;摩擦性能; 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2016年全国青年摩擦学学术会议 </a> <span> <span> . 2016</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/02031567267.html">粉煤灰/石墨/铝基复合材料的制备及其摩擦磨损性能的研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=陈凤林&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 陈凤林</a> <span> . 2019</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061203843376.html">一种基于合金硅-玄武岩纤维复合材料的耐磨制动摩擦材料及其制备方法</a> <b>[P]</b> . <span> 中国专利： CN108285772B </span> <span> . 2020.07.21</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120108983923.html">泡沫陶瓷增强轻金属复合材料摩擦离合片、制动盘</a> <b>[P]</b> . <span> 中国专利： CN106499741A </span> <span> . 2017-03-15</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130426989392.html">METAL SINTERED BRAKE FRICTION MATERIAL CONTAINING FLY ASH WHICH SECURES BRAKING FORCE AND HIGH TEMPERATURE BRAKING STABILITY USING AN POROUS REFINED FLY ASH AS A ABRASIVE AGENT</a> <b>[P]</b> . <span> 外国专利：  KR20100104478A </span> <span> . 2010-09-29</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：含粉煤灰的金属烧结制动摩擦材料，采用多孔精制粉煤灰作为磨料，可确保制动力和高温制动稳定性 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130424442707.html">Sintered metal brake friction materials containing fly ash</a> <b>[P]</b> . <span> 外国专利：  KR101059548B1 </span> <span> . 2011-08-26</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：含粉煤灰的烧结金属制动摩擦材料 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130428326143.html">Aircraft brake using mixed carbon composite friction couple with different degrees of graphitization for improved rejected take off and wear performance</a> <b>[P]</b> . <span> 外国专利：  US2010072002A1 </span> <span> . 2010-03-25</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：使用混合碳复合摩擦副和不同石墨化程度的飞机制动器，可改善拒收起飞和磨损性能 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704024546595','4',7,2,1,'',this,24)" class="delivery" 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