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    • 6. 发明授权
    • Diagnostic monitor for carbon fiber processing
    • 碳纤维加工诊断监视器
    • US06375875B1
    • 2002-04-23
    • US09492473
    • 2000-01-27
    • Felix L. PaulauskasTimothy S. BigelowThomas T. Meek
    • Felix L. PaulauskasTimothy S. BigelowThomas T. Meek
    • B29C4712
    • G01N22/00B29C47/0014
    • A method for monitoring characteristics of materials includes placing a material in an application zone, measuring a change in at least one property value of the application zone caused by placing the material in the application zone and relating changes in the property value of the application zone caused by the material to at least one characteristic of the material An apparatus for monitoring characteristics of a material includes a measuring device for measuring a property value resulting from applying a frequency signal to the application zone after placing a material in the application zone and a processor for relating changes in the property value caused by placement of the material in the application zone to at least one desired characteristic of the material. The application zone is preferably a resonant cavity.
    • 用于监测材料特性的方法包括将材料放置在应用区域中,测量通过将材料放置在应用区域中引起的应用区域的至少一个属性值的变化,并且引起应用区域的属性值的变化 通过该材料至该材料的至少一个特征。用于监测材料特性的装置包括:测量装置,用于测量在将材料放置在应用区域中之后将施加频率信号施加到应用区域所产生的属性值;以及处理器 将材料在应用区域中的放置引起的属性值的变化与材料的至少一个期望特征相关联。 应用区域优选地是谐振腔。
    • 8. 发明授权
    • System to continuously produce carbon fiber via microwave assisted plasma processing
    • 系统通过微波辅助等离子体处理连续生产碳纤维
    • US07824495B1
    • 2010-11-02
    • US11270065
    • 2005-11-09
    • Terry L. WhiteFelix L. PaulauskasTimothy S. Bigelow
    • Terry L. WhiteFelix L. PaulauskasTimothy S. Bigelow
    • C23C16/00C23F1/00
    • B01J19/126D01F9/32D06M10/025H01J37/32192H01J37/32229
    • A system to continuously produce fully carbonized or graphitized carbon fibers using microwave-assisted plasma (MAP) processing comprises an elongated chamber in which a microwave plasma is excited in a selected gas atmosphere. Fiber is drawn continuously through the chamber, entering and exiting through openings designed to minimize in-leakage of air. There is a gradient of microwave power within the chamber with generally higher power near where the fiber exits and lower power near where the fiber enters. Polyacrylonitrile (PAN), pitch, or any other suitable organic/polymeric precursor fibers can be used as a feedstock for the inventive system. Oxidized or partially oxidized PAN or pitch or other polymeric fiber precursors are run continuously through a MAP reactor in an inert, non-oxidizing atmosphere to heat the fibers, drive off the unwanted elements such as oxygen, nitrogen, and hydrogen, and produce carbon or graphite fibers faster than conventionally produced carbon fibers.
    • 使用微波辅助等离子体(MAP)处理连续生产完全碳化或石墨化的碳纤维的系统包括其中微波等离子体在所选择的气体气氛中被激发的细长室。 纤维被连续地抽吸通过室,通过设计成最小化空气泄漏的开口进入和离开。 室内具有微波功率的梯度,在光纤出口附近具有通常较高的功率,在纤维进入附近的功率较低。 聚丙烯腈(PAN),沥青或任何其它合适的有机/聚合物前体纤维可用作本发明体系的原料。 氧化或部分氧化的PAN或沥青或其它聚合物纤维前体在惰性非氧化气氛中连续通过MAP反应器,以加热纤维,驱除不需要的元素如氧,氮和氢,并产生碳或 石墨纤维比常规生产的碳纤维更快。