Article(id=1193230892350013692, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1193230615618220608, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2025.02.002, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1727020800000, receivedDateStr=2024-09-23, revisedDate=1733068800000, revisedDateStr=2024-12-02, acceptedDate=null, acceptedDateStr=null, onlineDate=1762418013893, onlineDateStr=2025-11-06, pubDate=1739980800000, pubDateStr=2025-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762418013893, onlineIssueDateStr=2025-11-06, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762418013893, creator=13701087609, updateTime=1762418013893, updator=13701087609, issue=Issue{id=1193230615618220608, tenantId=1146029695717560320, journalId=1149653034449285133, year='2025', volume='58', issue='2', pageStart='1', pageEnd='138', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762417947916, creator=13701087609, updateTime=1762418457365, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1193232752444145866, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1193230615618220608, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1193232752444145867, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1193230615618220608, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=9, endPage=15, ext={EN=ArticleExt(id=1193230892559728894, articleId=1193230892350013692, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Insulation performance of C5F10O/dry air gas mixture under low partial pressure conditions, columnId=1193230616230588994, journalTitle=Insulating Materials, columnName=Special Issue on Eco-friendly Insulating Gas, runingTitle=null, highlight=

In order to assess the feasibility of using C5F10O/dry air gas mixture to replace existing dry air or nitrogen in insulation equipment under low partial pressure conditions, we analyzed the insulation performance of C5F10O/dry air gas mixture systematically. The results show that in a quasi-uniform electric field, when the partial pressure of C5F10O is 5-10 kPa, the insulation strength of the C5F10O/dry air gas mixture is 1.1-1.9 times and 1.4-2.3 times bigger than that of dry air and nitrogen under the same condition, respectively, which indicates that even at low partial pressures, the C5F10O/dry air still demonstrates strong insulation performance and has technical advantages compare to dry air or nitrogen. Furthermore, the C5F10O/dry air shows good stability in multiple breakdown tests, and the slope of fitting curves between breakdown voltage and breakdown times approaches zero, indicating that its insulation performance has not significantly deteriorated.

, articleAbstract=

In order to assess the feasibility of using C5F10O/dry air gas mixture to replace existing dry air or nitrogen in insulation equipment under low partial pressure conditions, we analyzed the insulation performance of C5F10O/dry air gas mixture systematically. The results show that in a quasi-uniform electric field, when the partial pressure of C5F10O is 5-10 kPa, the insulation strength of the C5F10O/dry air gas mixture is 1.1-1.9 times and 1.4-2.3 times bigger than that of dry air and nitrogen under the same condition, respectively, which indicates that even at low partial pressures, the C5F10O/dry air still demonstrates strong insulation performance and has technical advantages compare to dry air or nitrogen. Furthermore, the C5F10O/dry air shows good stability in multiple breakdown tests, and the slope of fitting curves between breakdown voltage and breakdown times approaches zero, indicating that its insulation performance has not significantly deteriorated.

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为评估C5F10O/干燥空气混合气体在低分压条件下替代现有干燥空气或氮气应用于绝缘设备的可行性,本研究系统分析了C5F10O/干燥空气混合气体的绝缘性能。结果表明:在准均匀电场下,C5F10O分压为5~10 kPa时,C5F10O/干燥空气混合气体的绝缘强度分别为相同条件下干燥空气和氮气的1.1~1.9倍和1.4~2.3倍,表明即使在低分压下,C5F10O/干燥空气混合气体仍表现出较强的绝缘性能,相较于干燥空气或氮气具有技术优势。此外,低分压下C5F10O/干燥空气混合气体在多次击穿测试中表现出良好的稳定性,击穿电压与击穿次数的拟合曲线斜率接近于零,表明其绝缘性能未发生显著劣化。

, articleAbstract=

为评估C5F10O/干燥空气混合气体在低分压条件下替代现有干燥空气或氮气应用于绝缘设备的可行性,本研究系统分析了C5F10O/干燥空气混合气体的绝缘性能。结果表明:在准均匀电场下,C5F10O分压为5~10 kPa时,C5F10O/干燥空气混合气体的绝缘强度分别为相同条件下干燥空气和氮气的1.1~1.9倍和1.4~2.3倍,表明即使在低分压下,C5F10O/干燥空气混合气体仍表现出较强的绝缘性能,相较于干燥空气或氮气具有技术优势。此外,低分压下C5F10O/干燥空气混合气体在多次击穿测试中表现出良好的稳定性,击穿电压与击穿次数的拟合曲线斜率接近于零,表明其绝缘性能未发生显著劣化。

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夏亚龙(1989-),男(汉族),甘肃陇南人,高级工程师,博士,主要从事SF6气体设备绝缘与熄弧特性、新型环保气体设备与应用相关的研究工作。

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夏亚龙(1989-),男(汉族),甘肃陇南人,高级工程师,博士,主要从事SF6气体设备绝缘与熄弧特性、新型环保气体设备与应用相关的研究工作。

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夏亚龙(1989-),男(汉族),甘肃陇南人,高级工程师,博士,主要从事SF6气体设备绝缘与熄弧特性、新型环保气体设备与应用相关的研究工作。

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低分压下C5F10O/干燥空气混合气体的绝缘性能研究
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夏亚龙 1 , 李富祥 1 , 毛婳 1 , 王燕 1 , 靳梦磊 2 , 唐炬 2 , 肖淞 2
绝缘材料 | 环保绝缘气体专题 2025,58(2): 9-15
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绝缘材料 | 环保绝缘气体专题 2025, 58(2): 9-15
低分压下C5F10O/干燥空气混合气体的绝缘性能研究
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夏亚龙1, 李富祥1, 毛婳1, 王燕1, 靳梦磊2, 唐炬2, 肖淞2
作者信息
  • 1国网四川省电力公司电力科学研究院,四川 成都 610041
  • 2武汉大学 电气与自动化学院,湖北 武汉 430072
  • 夏亚龙(1989-),男(汉族),甘肃陇南人,高级工程师,博士,主要从事SF6气体设备绝缘与熄弧特性、新型环保气体设备与应用相关的研究工作。

Insulation performance of C5F10O/dry air gas mixture under low partial pressure conditions
Yalong XIA1, Fuxiang LI1, Hua MAO1, Yan WANG1, Menglei JIN2, Ju TANG2, Song XIAO2
Affiliations
  • 1State Grid Sichuan Electric Power Research Institute, Chengdu 610041, China
  • 2School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China
出版时间: 2025-02-20 doi: 10.16790/j.cnki.1009-9239.im.2025.02.002
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为评估C5F10O/干燥空气混合气体在低分压条件下替代现有干燥空气或氮气应用于绝缘设备的可行性,本研究系统分析了C5F10O/干燥空气混合气体的绝缘性能。结果表明:在准均匀电场下,C5F10O分压为5~10 kPa时,C5F10O/干燥空气混合气体的绝缘强度分别为相同条件下干燥空气和氮气的1.1~1.9倍和1.4~2.3倍,表明即使在低分压下,C5F10O/干燥空气混合气体仍表现出较强的绝缘性能,相较于干燥空气或氮气具有技术优势。此外,低分压下C5F10O/干燥空气混合气体在多次击穿测试中表现出良好的稳定性,击穿电压与击穿次数的拟合曲线斜率接近于零,表明其绝缘性能未发生显著劣化。

C5F10O/干燥空气  /  绝缘性能  /  气体绝缘  /  SF6替代气体  /  击穿电压

In order to assess the feasibility of using C5F10O/dry air gas mixture to replace existing dry air or nitrogen in insulation equipment under low partial pressure conditions, we analyzed the insulation performance of C5F10O/dry air gas mixture systematically. The results show that in a quasi-uniform electric field, when the partial pressure of C5F10O is 5-10 kPa, the insulation strength of the C5F10O/dry air gas mixture is 1.1-1.9 times and 1.4-2.3 times bigger than that of dry air and nitrogen under the same condition, respectively, which indicates that even at low partial pressures, the C5F10O/dry air still demonstrates strong insulation performance and has technical advantages compare to dry air or nitrogen. Furthermore, the C5F10O/dry air shows good stability in multiple breakdown tests, and the slope of fitting curves between breakdown voltage and breakdown times approaches zero, indicating that its insulation performance has not significantly deteriorated.

C5F10O/dry air  /  insulation performance  /  gas insulation  /  SF6 alternative gas  /  breakdown voltage
夏亚龙, 李富祥, 毛婳, 王燕, 靳梦磊, 唐炬, 肖淞. 低分压下C5F10O/干燥空气混合气体的绝缘性能研究. 绝缘材料, 2025 , 58 (2) : 9 -15 . DOI: 10.16790/j.cnki.1009-9239.im.2025.02.002
Yalong XIA, Fuxiang LI, Hua MAO, Yan WANG, Menglei JIN, Ju TANG, Song XIAO. Insulation performance of C5F10O/dry air gas mixture under low partial pressure conditions[J]. Insulating Materials, 2025 , 58 (2) : 9 -15 . DOI: 10.16790/j.cnki.1009-9239.im.2025.02.002
六氟化硫(SF6)凭借其卓越的绝缘和灭弧特性,广泛应用于中高压电气设备中[1]。据了解,电力行业使用的SF6占全球总产量的80%[2]。然而由于其强大的温室效应,早在1997年,《京都议定书》便已将SF6列为限制使用的6种温室气体之一[3-4]。此外,2016年签署的《巴黎协定》要求将21世纪全球平均气温较前工业化时期上升幅度控制在2℃以内。欧盟及其他立法机构也将SF6列为逐步淘汰的对象[5]。目前SF6在大气中的浓度仍以每年8.7%的速度递增,为减少SF6的使用,研究人员已广泛探讨氮气、空气、二氧化碳及SF6混合气体等的替代可行性[6-11]。近年来,全氟戊酮(C5F10O)及其混合气体因优异的绝缘性能和环保特性而备受关注。研究表明,C5F10O的电气强度可达SF6的两倍,全球变暖潜值仅为1,大气寿命约为15天[12-16]。尽管C5F10O的常压液化温度较高(26.9℃),但与缓冲气体如干燥空气混合后,可大幅降低混合气体的液化温度,以满足不同工程应用的液化温度要求[17]
目前,国内外对C5F10O及其混合气体的研究仍在不断深入。例如,ABB公司测试了C5F10O/空气混合气体的绝缘特性,发现纯C5F10O的绝缘性能约为SF6的两倍。气压为0.7 MPa的C5F10O(39 kPa)/空气混合气体的绝缘强度约为气压为0.45 MPa的SF6的95%[17]。ABB公司还测试了C5F10O/CO2/O2混合气体的绝缘性能和开断性能,结果显示,C5F10O/CO2/O2混合气体的绝缘性能略低于SF6,电弧开断性能比SF6低约30%。但通过提高C5F10O混合气体的总压强,混合气体的绝缘强度可达到与SF6相当的水平[18]。ZHONG Jianying等[19]测试了C5F10O/CO2混合气体的工频耐压和雷电冲击性能,发现增加C5F10O浓度可有效提高混合气体的绝缘强度,而提升总压强可提高混合气体的雷电冲击放电电压。LI Xingwen等[20]计算了C5F10O/CO2混合气体的热力学性质和传输系数,发现随着C5F10O浓度的增大,C5F10O/CO2混合气体的大部分物理性质(包括导热性和电导率)逐渐接近SF6。M SAXEGAARD等[21]研究发现,采用液化温度为-25℃的C5F10O/空气混合气体可以将空气开关设备的额定电压从12 kV提升至24 kV。P SIMKA等[17]通过对比准均匀电场下低压C5F10O、C5F10O/干燥空气与SF6的直流击穿电压,发现C5F10O/干燥空气在特定条件下的绝缘强度与SF6相当,这表明C5F10O混合气体有望替代中低压电气绝缘设备中的SF6。M AINTS等[22]通过计算得出了C5F10O的有效电离系数,认为C5F10O与干燥空气的混合气体具有在许多中高压设备中替代SF6的潜力。在应用方面,ABB公司开发了一种以C5F10O/空气混合气体为绝缘介质的22 kV环网开关柜,并于2015年在苏黎世的一座变电站投入使用[23],2016年该公司推出的AirPlusTM产品也采用C5F10O与空气的混合气体作为绝缘介质[24]
然而,在实际应用中,过高的C5F10O分压会导致混合气体液化温度升高,限制其使用范围。因此,研究C5F10O/干燥空气混合气体在低分压条件下的绝缘特性,并评估其在环境温度较低、绝缘气体液化风险较高的电气设备中应用的可行性具有重要的实际意义。压强为5~10 kPa的低分压C5F10O混合气体不仅可以降低液化风险,还能减少设备对气体压力调控的要求,从而提升其在工程应用中的经济性和适用性。
本研究基于气体绝缘性能测试平台,分析低分压条件下C5F10O/干燥空气混合气体的绝缘特性,具体研究不同电场条件(准均匀电场与非均匀电场)、C5F10O分压对击穿电压的影响,以及混合气体在多次击穿后的稳定性与分散性,从而为C5F10O/干燥空气混合气体在中低压电气设备中的实际应用提供数据支持和理论依据。
本研究使用的气体绝缘性能测试平台如图1所示。感应调压器(0~380 V)用于控制测试变压器的输出电压。工频变压器的额定容量为100 kVA,能够提供0~100 kV的工频电压。使用保护电阻(10 kΩ)防止放电后过电流对变压器造成损坏。分压电容器用于测量施加在放电室两端的实际电压。反应气室是一个容积为20 L的圆柱形腔室,能够承受0.8 MPa的压力。反应气室、管道、法兰和球阀的材料为304L不锈钢,该材料因具有优异的抗腐蚀性和出色的力学性能而在工业中广泛使用。密封圈等固体绝缘件均由聚四氟乙烯(PTFE)制成,该材料是高分子材料中化学性质最稳定的材料之一。
为了模拟电气设备内部常见的准均匀电场条件,采用球-球电极进行试验。球电极由黄铜制成,具体模型如图2所示。球电极直径为50 mm,电极与导杆之间通过内螺纹结构连接。通过旋动上下电极,将球电极间隙固定为2 mm,使放电间隙处于准均匀电场状态,不均匀系数为1.02[25],与设备内部的电场均匀度相一致。为了避免电极表面因多次工频击穿而受到烧蚀,进而影响试验结果,试验过程中定期更换电极,以确保球电极表面尤其是放电点附近区域的清洁和光滑。
为了模拟电气设备内部常见的非均匀电场条件,采用针-板电极进行试验。针电极由钨铜合金制成,因钨具有高熔点、耐腐蚀、高密度以及优良的导热和导电性能,能够在长时间局部放电过程中有效防止针尖被烧蚀,从而保持针尖的尖锐度,确保局部放电电荷量测量的准确性。针电极的总长度为17 mm,底部直径为5 mm,针尖部分长度为5 mm。由于针尖越尖锐,越容易发生局部放电,为避免不同针电极给试验结果造成误差,并减少放电过程中针尖的烧蚀程度,本试验将针电极针尖的曲率半径统一设定为0.3 mm。板电极采用黄铜材质,厚度为8 mm,直径为70 mm。试验时,将针电极针尖与板电极中心的距离设置为10 mm,以模拟真实设备中的非均匀电场条件。针-板电极的模型如图3所示。
本试验采用干燥空气作为缓冲气体研究C5F10O混合气体的绝缘特性。C5F10O的液化温度高于干燥空气(由80%氮气和20%氧气组成的混合气体)的液化温度。根据道尔顿分压定律,这些气体可以视为理想气体,在气体混合物中,每一组分的分压与该组分单独填充同一容器时所产生的气压相同,且总气压等于各组分分压之和[26]。因此,C5F10O混合气体的液化温度可以看作与C5F10O在相应分压下的液化温度相同。此外,根据理想气体定律,在气体体积和温度保持不变的条件下,气体的分压与其物质的量成正比,而物质的量与其在混合气体中的摩尔分数成正比。因此,C5F10O的分压占比等效于其摩尔分数,也即等效于其浓度。根据相关报道,C5F10O在不同液化温度下的饱和蒸气压如图4所示[27]。考虑到低分压C5F10O电气绝缘设备的要求,本研究将C5F10O的分压设定为5、6、7、8、9、10 kPa,总气压设定为0.13 MPa。与此同时,在相同条件下测试干燥空气和氮气的绝缘性能,以便进行对比分析。
在进行测试前,首先用无水乙醇擦拭反应气室的内壁3次,以确保内部的清洁和干燥。安装好球形电极并设置好间隙距离后,对放电室进行抽真空处理,并检测气室的气密性。然后充入缓冲气体至气室内部呈正压状态,再次抽真空,此过程重复3次,以确保反应气室内不含杂质气体。由于C5F10O的饱和蒸气压较低,根据道尔顿分压定律,应先根据设定的分压充入C5F10O,再充入缓冲气体至总气压的设定值。充气后,让放电室静置24 h,以确保气体混合均匀,从而获得更为准确的测试结果。
采用逐步升压法对试验电极施加交流电压,每隔1 min通过感应调压器逐步升高施加在电极两端的工频电压,升压步长不超过0.5 kV,直至气隙被击穿。每次击穿测试的间隔时间设定为5 min,以提供足够的时间给绝缘气体进行自恢复和内部循环,防止因击穿导致电极之间局部区域的气体绝缘强度下降,提高测试数据的可靠性。为了确保测试的严谨性和数据的准确性,每组数据均取自30次测试结果的平均值。
在研究C5F10O/干燥空气混合气体的绝缘性能时,低分压条件下的击穿电压表现尤为重要。本研究分别在准均匀电场和非均匀电场下测试了不同C5F10O分压对C5F10O/干燥空气混合气体击穿电压的影响,结果如图56所示。
图5可以看出,在准均匀电场中,随着C5F10O分压的逐渐增大,混合气体的击穿电压呈现出线性上升趋势。这种现象说明C5F10O分子具有较高的电负性,能够有效捕获自由电子,减少气体中的自由电子数,从而增强绝缘能力。文献[27]研究发现,在0.1 MPa条件下,当C5F10O的分压从15 kPa增大至45 kPa时,C5F10O/干燥空气混合气体的击穿电压提高了1倍。在本研究中,当C5F10O的分压从5 kPa增大至10 kPa时,混合气体的击穿电压提高了44%。因此,在本研究的低分压范围内,混合气体的击穿电压随C5F10O分压的增大增幅较为明显,表明C5F10O的电负性在低分压条件下对混合气体绝缘强度的提升效果显著。
图6可以看出,在非均匀电场中,C5F10O分压的增大同样导致了混合气体击穿电压的提升,但由于非均匀电场中的局部高电场效应,击穿电压的增幅相对较小。尽管如此,随着C5F10O分压的逐步增大,混合气体的绝缘强度仍然能够保持提升,这意味着通过调整C5F10O分压,可以在不同电场条件下有效提高混合气体的击穿电压。
综合来看,C5F10O分压的增大对C5F10O/干燥空气混合气体的击穿电压具有显著提升作用,特别是在准均匀电场下表现尤为突出。随着C5F10O分压的增大,气体中C5F10O分子的浓度增大,其电负性作用更为显著,能够有效捕捉自由电子并抑制电子流动,从而提高气体的击穿电压。此外,C5F10O分压的增大还优化了气体分子间的相互作用,改善了电场中的能量分布,进一步提升了气体的绝缘性能。通过调节C5F10O的分压不仅能够显著增强混合气体的绝缘性能,还能使其更好地适应不同类型的电场环境。
在低分压条件下,C5F10O/干燥空气混合气体的击穿稳定性对于其在电气设备中的应用具有重要意义。图7图8分别展示了在准均匀电场和非均匀电场条件下,C5F10O分压为10 kPa时C5F10O/干燥空气混合气体工频击穿电压随击穿次数的变化情况。通过计算得出准均匀电场下混合气体击穿电压与击穿次数的拟合曲线斜率为0.045 83,而非均匀电场下的拟合曲线斜率为0.028 25,这两个值接近于零,表明混合气体在多次击穿后的绝缘性能没有显著劣化,可以保持稳定的绝缘水平。
此外,试验中还发现,当C5F10O分压较低时,混合气体的绝缘性能波动相对较小。具体数据显示,准均匀电场和非均匀电场下C5F10O/干燥空气混合气体的击穿电压标准差分别为1.33和1.56,绝缘性能的分散性相对较小,这意味着在不同的工作条件下,低分压C5F10O/干燥空气混合气体能够维持稳定的绝缘强度,从而提升其在电气设备中的应用可靠性。
图9图10分别为C5F10O/干燥空气混合气体与当前中低压设备中常用氮气、干燥空气的绝缘性能对比结果。从图910可以看出,在低分压(5~10 kPa)条件下,C5F10O/干燥空气混合气体的绝缘强度是氮气的1.4~2.3倍,是干燥空气的1.1~1.9倍。这表明即使在较低分压下,C5F10O/干燥空气仍具有较强的绝缘性能,相较于氮气或干燥空气具有明显的技术优势,足以满足中低压电气设备的基本绝缘要求。
相比于高分压条件,低分压条件下C5F10O混合气体的一个显著优势是其液化温度较低,从而降低了液化风险。例如,当C5F10O的分压为10 kPa时,C5F10O/干燥空气混合气体的液化温度接近-30℃,使得气体能够在大部分环境温度较低的场景下正常使用,而无需配备额外的气体温度调控设备,不仅降低了设备成本,还减少了对复杂环境下温度控制的依赖,对于工程应用而言具有较高的经济性和实用性。
此外,通过适当控制C5F10O的分压,能够在不显著提高液化风险的前提下,提高C5F10O/干燥空气混合气体的绝缘强度。将低分压C5F10O/干燥空气混合气体应用于中低压设备中,不仅能够有效替代干燥空气或氮气,还具有良好的可操作性,尤其适合温度较低或对气体压力控制要求较低的应用场景。
因此,在低分压条件下,C5F10O/干燥空气具有良好的绝缘性能与应用可行性,特别是在既需要控制液化风险又需要兼顾绝缘性能的中低压电气设备中,这一气体为替代干燥空气或氮气提供了可靠的解决方案。
本研究系统探讨了C5F10O/干燥空气混合气体在低分压条件下的绝缘性能,主要得到以下结论:
(1)随着C5F10O分压的增加,C5F10O/干燥空气混合气体的击穿电压显著提升。在准均匀电场下,C5F10O分压为5~10 kPa时,C5F10O/干燥空气混合气体的绝缘强度约为相同条件下干燥空气的1.1~1.9倍,氮气的1.4~2.3倍,表明即使在低分压下,C5F10O/干燥空气仍表现出较强的绝缘性能。
(2)低分压C5F10O/干燥空气混合气体在准均匀电场和非均匀电场下经过多次击穿测试后绝缘性能几乎未发生显著劣化,仍保持良好的绝缘性能,这表明在低分压下C5F10O/干燥空气混合气体在长时间使用中具有较好的稳定性和可靠性。
(3)总气压为0.13 MPa、C5F10O分压为10 kPa的C5F10O/干燥空气混合气体液化温度可低至-30℃,能够在大部分温度较低的场景下使用。
  • 四川省科技计划资助项目(2023NSFSC0297)
  • 国网四川省电力公司科技项目(52199723000K)
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2025年第58卷第2期
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doi: 10.16790/j.cnki.1009-9239.im.2025.02.002
  • 接收时间:2024-09-23
  • 首发时间:2025-11-06
  • 出版时间:2025-02-20
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  • 收稿日期:2024-09-23
  • 修回日期:2024-12-02
基金
四川省科技计划资助项目(2023NSFSC0297)
国网四川省电力公司科技项目(52199723000K)
作者信息
    1国网四川省电力公司电力科学研究院,四川 成都 610041
    2武汉大学 电气与自动化学院,湖北 武汉 430072
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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