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21. 发明授权

US5883311A Methods and apparatus for detection of crack initiation 失效
标题翻译：用于检测裂纹发生的方法和装置
公开(公告)号：US5883311A
公开(公告)日：1999-03-16
申请号：US667711
申请日：1996-06-21
申请人： Samson Hettiarachchi , Gary Paul Wozadlo
发明人： Samson Hettiarachchi , Gary Paul Wozadlo
IPC分类号： G01N3/00 , G01N3/02 , G01N3/06 , G01N3/32 , G01N19/08
CPC分类号： G01N17/006 , G01N17/02 , G01N3/066 , G01N3/32 , G01N2203/0064 , G01N2203/0218 , G01N2203/0222 , G01N2203/024 , G01N2203/0244 , G01N2203/0246
摘要： Methods and apparatus for detecting the onset of stress corrosion cracking are described. In one aspect, the present invention is a passive detector for in-situ detection of the onset of stress corrosion cracking in a nuclear reactor. The detector includes a ceramic insulator mounting member. A first material sample and a second material sample are secured to the mounting member. In the one embodiment, a metal bolt extends through the first and second material samples and secures the samples to the mounting member. The first material sample is cold worked to induce residual tensile stress and the second material is not cold worked. A first electrical conductor is electrically connected to the first material sample and a second electrical conductor is electrically connected to the second material sample. An electrometer is electrically connected to the first and second electrical conductors, and the electrometer is configured to generate a strain induced differential potential signal representative of a difference in potential between the first sample and the second sample. Alternatively, a strain induced differential current signal can be monitored using a zero resistance ammeter in place of the electrometer. The detector configured to be located within the reactor at the location where monitoring is desired, and during the reactor operation, if transients are observed in the differential signal, this condition indicates that at the location of the detector, an inspection should be performed at the next outage to determine whether cracking is occurring. Active detectors, detection methods, and test apparatus also are described.
摘要翻译：描述了用于检测应力腐蚀开裂发生的方法和装置。一方面，本发明是用于在核反应堆中原位检测应力腐蚀开裂的无源检测器。检测器包括陶瓷绝缘体安装构件。第一材料样品和第二材料样品固定到安装构件。在一个实施例中，金属螺栓延伸穿过第一和第二材料样品并将样品固定到安装构件。第一种材料样品被冷加工以引起残余拉伸应力，第二种材料不被冷加工。第一电导体电连接到第一材料样品，第二电导体与第二材料样品电连接。静电计电连接到第一和第二电导体，并且静电计被配置为产生代表第一样品和第二样品之间的电位差的应变感应差分电位信号。或者，可以使用零电阻电流表代替静电计来监测应变感应差动电流信号。检测器被配置为位于反应器内需要监测的位置处，并且在电抗器操作期间，如果在差动信号中观察到瞬变，则该条件指示在检测器的位置处应该在下一次断电以确定是否发生裂纹。还描述了主动检测器，检测方法和测试装置。

22. 发明授权

US5774516A Modification of oxide film electrical conductivity to maintain low corrosion potential in high-temperature water 失效
标题翻译：修改氧化膜电导率，以保持高温水中的低腐蚀潜力
公开(公告)号：US5774516A
公开(公告)日：1998-06-30
申请号：US698178
申请日：1996-08-15
申请人： Samson Hettiarachchi , Young J. Kim , Peter L. Andresen , Thomas P. Diaz
发明人： Samson Hettiarachchi , Young J. Kim , Peter L. Andresen , Thomas P. Diaz
IPC分类号： G21D1/00 , B01J37/03 , C23C8/80 , C23C12/00 , C23F11/08 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/30 , G21C19/307 , G21C9/00
CPC分类号： G21C17/0225 , B01J37/031 , C23C12/00 , C23C8/80 , C23F11/08 , C23F11/18 , G01N17/02 , G21C17/02 , G21C19/28 , G21C19/30 , G21C19/307 , G21C17/022 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/201 , G21Y2002/204 , G21Y2004/10 , G21Y2004/101 , G21Y2004/20 , G21Y2004/30 , G21Y2004/302 , G21Y2004/40
摘要： A method for mitigating general corrosion and crack initiation and growth on the surface of a metal components in a water-cooled nuclear reactor. A compound containing a non-noble metal such as zirconium or titanium is injected into the water of the reactor in the form of a solution or suspension. This compound decomposes under reactor thermal conditions to release ions or atoms of the non-noble metal which incorporate in the surfaces of the components, including the interior surfaces of any cracks formed therein. The preferred compounds are zirconium compounds such as zirconium acetylacetonate, zirconium nitrate and zirconyl nitrate. Zirconium incorporated in the oxided surface of a metal component will reduce the electrochemical corrosion potential at the surface to a level below the critical potential to protect against intergranular stress corrosion cracking without the addition of hydrogen.
摘要翻译：一种减轻水冷核反应堆中金属组分表面的一般腐蚀和裂纹开始和生长的方法。含有非贵金属如锆或钛的化合物以溶液或悬浮液的形式注入反应器的水中。该化合物在反应器热条件下分解以释放非贵金属的离子或原子，其结合在组分的表面中，包括其中形成的任何裂纹的内表面。优选的化合物是锆化合物，例如乙酰丙酮酸锆，硝酸锆和硝酸氧锆。结合在金属部件的氧化表面中的锆将使表面处的电化学腐蚀电位降低到低于临界电位的水平，以防止在不加氢的情况下防止晶间应力腐蚀开裂。

23. 发明授权

US5608766A Co-deposition of palladium during oxide film growth in high-temperature water to mitigate stress corrosion cracking 失效
标题翻译：在高温水中氧化膜生长期间钯的共沉积以减轻应力腐蚀开裂
公开(公告)号：US5608766A
公开(公告)日：1997-03-04
申请号：US322253
申请日：1994-10-13
申请人： Peter L. Andresen , Samson Hettiarachchi , Young J. Kim , Thomas P. Diaz
发明人： Peter L. Andresen , Samson Hettiarachchi , Young J. Kim , Thomas P. Diaz
IPC分类号： G21D1/00 , B01J37/03 , C23C8/80 , C23C12/00 , C23F11/08 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/30 , G21C19/307 , G21D3/08 , G21C9/00
CPC分类号： G21C17/0225 , B01J37/031 , C23C12/00 , C23C8/80 , C23F11/08 , C23F11/18 , G01N17/02 , G21C17/02 , G21C19/28 , G21C19/30 , G21C19/307 , G21C17/022 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/201 , G21Y2002/204 , G21Y2004/10 , G21Y2004/101 , G21Y2004/20 , G21Y2004/30 , G21Y2004/302 , G21Y2004/40
摘要： A method for improving the performance and longevity of coatings of metal deposited from aqueous solutions of inorganic, organic or oraganometallic metal compounds. The method involves co-deposition of noble metal or corrosion-inhibiting non-noble metal during growth of oxide film on a component made of alloy, e.g., stainless steels and nickel-based alloys. The result is a metal-doped oxide film having a relatively longer life in the reactor operating environment. In particular, incorporation of palladium into the film provides greatly increased catalytic life as compared to palladium coatings which lie on the oxide surface.
摘要翻译：一种改善由无机，有机或金属金属化合物的水溶液沉积的金属涂层的性能和寿命的方法。该方法包括在由诸如不锈钢和镍基合金的合金制成的部件上氧化膜生长期间共沉积贵金属或腐蚀抑制非贵金属。结果是在反应器操作环境中具有相对较长寿命的金属掺杂氧化物膜。特别地，与位于氧化物表面上的钯涂层相比，将钯引入膜中提供了大大增加的催化寿命。

24. 发明授权

US5571394A Monolithic sensor switch for detecting presence of stoichiometric H.sub.2 /O.sub.2 ratio in boiling water reactor circuit 失效
标题翻译：用于检测沸水反应器电路中化学计量H2 / O2比率的单片传感器开关
公开(公告)号：US5571394A
公开(公告)日：1996-11-05
申请号：US437269
申请日：1995-05-08
申请人： Samson Hettiarachchi , Maurice E. Indig , Robert J. Law
发明人： Samson Hettiarachchi , Maurice E. Indig , Robert J. Law
IPC分类号： G01N27/30 , G01N27/403 , G01N27/26
CPC分类号： G01N27/4035
摘要： An electrode probe for measuring the electrochemical potential of a surface at a location of interest in a boiling water reactor. The probe has a monolithic sensor configuration built into a single stainless steel mineral insulated (MI) cable. This monolithic sensor can be used as a switch to detect when the appropriate concentration of dissolved hydrogen required to provide IGSCC mitigation is present at any location inside the reactor. Using the sensor switch, it is possible to in situ instantly determine the minimum hydrogen level required to reach the IGSCC protection potential. The sensor configuration consists of a metal/metal oxide/ZrO.sub.2 sensor and a noble metal sensor in a combination wherein the outer sheath of a mineral insulated cable acts as the conductor for the noble metal and the central conductor of the MI cable acts as the conductor for the metal/metal oxide/ZrO.sub.2. The metal/metal oxide/ZrO.sub.2 sensor acts as a reference electrode in the BWR environment (i.e., at constant pH) and the noble metal sensor acts as a hydrogen electrode which responds to the dissolved hydrogen content in the BWR water.
摘要翻译：用于测量沸水反应器中感兴趣位置处的表面的电化学势的电极探针。探头具有内置在单个不锈钢矿物绝缘（MI）电缆中的单片传感器配置。该单片传感器可以用作开关，以检测在反应器内部的任何位置处是否存在提供IGSCC缓解所需的适当的溶解氢浓度。使用传感器开关，可以即时确定达到IGSCC保护电位所需的最低氢气水平。传感器配置由金属/金属氧化物/ ZrO2传感器和贵金属传感器组成，其中矿物绝缘电缆的外护套用作贵金属的导体，并且MI电缆的中心导体用作导体用于金属/金属氧化物/ ZrO 2。金属/金属氧化物/ ZrO 2传感器用作BWR环境中的参比电极（即，在恒定pH下），贵金属传感器用作响应于BWR水中溶解的氢含量的氢电极。

25. 发明授权

US5448605A Palladium acetylacetonate solution and related method of manufacture 失效
标题翻译：钯乙酰丙酮溶液及相关制造方法
公开(公告)号：US5448605A
公开(公告)日：1995-09-05
申请号：US143514
申请日：1993-10-29
申请人： Samson Hettiarachchi
发明人： Samson Hettiarachchi
IPC分类号： G21D1/00 , B01J37/03 , C23F11/00 , C23F11/18 , G01N17/02 , G21C17/02 , G21C17/022 , G21C19/28 , G21C19/307 , G21D3/08 , B01J27/20
CPC分类号： G21C17/0225 , B01J37/031 , C23F11/18 , G01N17/02 , G21C17/02 , G21C19/28 , G21C19/307 , G21C17/022 , G21Y2002/102 , G21Y2002/103 , G21Y2002/104 , G21Y2002/204 , G21Y2004/10 , G21Y2004/20 , G21Y2004/30 , G21Y2004/40
摘要： A solution or suspension for reducing corrosion of stainless steel components in a water-cooled nuclear reactor. A compound containing a platinum group metal, e.g., palladium, is dissolved in an ethanol/water mixture or suspended in water. The resulting solution or suspension is injected into the water of the reactor. This compound has the property that it decomposes under reactor thermal conditions to release ions/atoms of the platinum group metal which incorporate in or deposit on the oxide film formed on the stainless steel reactor components. The compound may be organic, organometallic (e.g., palladium acetylacetonate) or inorganic in nature.
摘要翻译：用于减少水冷核反应堆中不锈钢部件腐蚀的溶液或悬浮液。含有铂族金属如钯的化合物溶于乙醇/水混合物或悬浮在水中。将所得溶液或悬浮液注入反应器的水中。该化合物具有其在反应器热条件下分解以释放铂族金属的离子/原子，其引入或沉积在形成于不锈钢反应器组分上的氧化膜上。化合物可以是有机的，有机金属的（例如乙酰丙酮钯）或无机的。

26. 发明授权

US5366602A Method of protecting embedded reinforcing members 失效
标题翻译：保护嵌入式加固件的方法
公开(公告)号：US5366602A
公开(公告)日：1994-11-22
申请号：US448940
申请日：1989-12-11
申请人： Samson Hettiarachchi , Ann T. Gaynor
发明人： Samson Hettiarachchi , Ann T. Gaynor
IPC分类号： C04B32/02 , C04B41/45 , C04B41/61 , C23F11/00 , E04C5/01 , E04G23/02 , C25D13/00
CPC分类号： C23F15/00 , C04B41/4566 , C04B41/61 , C23F11/00 , E04C5/01 , E04G23/02
摘要： A method for applying an anti-corrosive agent to a reinforcing bar in a cementitious structure. An electrolyte solution containing the anti-corrosive agent is placed in contact with a surface of the structure, and the agent is drawn into and through the structure, into contact with the embedded reinforcing bar, by an electric field.
摘要翻译：一种将抗腐蚀剂施加到水泥结构中的钢筋上的方法。将含有防腐剂的电解液与该结构体的表面接触，并通过电场将试剂吸入并通过该结构与嵌入的钢筋接触。

27. 发明授权

US09001957B2 Chemistry probe assemblies and methods of using the same in nuclear reactors 有权
标题翻译：化学探针组件及其在核反应堆中的使用方法
公开(公告)号：US09001957B2
公开(公告)日：2015-04-07
申请号：US12968898
申请日：2010-12-15
申请人： Filemon Tecson Cabrera , Angelito Foz Gonzaga , Edgardo V. Nazareno , Russell Seeman , Samson Hettiarachchi
发明人： Filemon Tecson Cabrera , Angelito Foz Gonzaga , Edgardo V. Nazareno , Russell Seeman , Samson Hettiarachchi
IPC分类号： G21C17/00 , G21C17/022 , G01N17/04
CPC分类号： G21C17/022 , G01N17/04
摘要： Electrochemical corrosion potential (ECP) probe assemblies may be used to monitor ECP of materials due to coolant chemistry in an operating nuclear reactor. Example embodiment assemblies include at least one ECP probe that detects ECP of potentially several different materials, a structural body providing a fluid flow path for the coolant over the ECP probes, and a signal transmitter that transmits or carries ECP data to an external receiver. The ECP probes may be of any number and/or type, so as to detect ECP for different component materials, including stainless steel, a zirconium alloys, etc. The ECP probes may further detect ECP due to ion concentration, pH, etc. The ECP data may be transmitted through wired or wireless signal transmitters. Example methods include installing and using example embodiment ECP probe assemblies in nuclear reactors and facilities.
摘要翻译：电化学腐蚀电位（ECP）探针组件可用于监测由于在运行的核反应堆中的冷却剂化学物质导致的材料的ECP。示例性实施例组件包括至少一个ECP探针，其检测潜在的几种不同材料的ECP，结构体为ECP探针上的冷却剂提供流体流动路径，以及将ECP数据传输或携带到外部接收器的信号发射器。 ECP探针可以是任何数量和/或类型，以便检测不同组分材料（包括不锈钢，锆合金等）的ECP。ECP探针可以进一步检测由于离子浓度，pH等引起的ECP。 ECP数据可以通过有线或无线信号发射机传输。示例性方法包括在核反应堆和设施中安装和使用示例性实施例ECP探针组件。

28. 发明申请

US20070028719A1 Method of manufacture of noble metal/zinc oxide hybrid product for simultaneous dose reduction and SCC mitigation of nuclear power plants 审中-公开
标题翻译：贵金属/氧化锌混合产品的制造方法，用于同时减量和SCC减排核电厂
公开(公告)号：US20070028719A1
公开(公告)日：2007-02-08
申请号：US11195592
申请日：2005-08-03
申请人： Samson Hettiarachchi , Thomas Diaz , Angelito Gonzaga
发明人： Samson Hettiarachchi , Thomas Diaz , Angelito Gonzaga
IPC分类号： B01J23/60 , C22C29/12
CPC分类号： G21C17/0225 , B01J23/60 , B22F1/025 , B22F9/24 , C01G9/00 , C01G55/00 , C01P2004/61 , C01P2004/62 , C01P2004/80 , C01P2004/84 , G21C19/307 , Y10T137/0324
摘要： Composite particle comprising a zinc containing compound such as zinc oxide and a noble metal such a platinum, and process for fabrication thereof. The particles facilitate simultaneous controlled introduction of the zinc and noble metal species into a nuclear reactor.
摘要翻译：包含诸如氧化锌的含锌化合物和铂等贵金属的复合粒子及其制造方法。这些颗粒有助于同时控制将锌和贵金属物质引入核反应堆。

29. 发明申请

US20060203952A1 Methods of reducing hydrogen absorption in zirconium alloys of nuclear fuel assemblies 审中-公开
标题翻译：减少核燃料组件锆合金中氢吸收的方法
公开(公告)号：US20060203952A1
公开(公告)日：2006-09-14
申请号：US11079356
申请日：2005-03-14
申请人： Samson Hettiarachchi , Daniel Lutz
发明人： Samson Hettiarachchi , Daniel Lutz
IPC分类号： G21C9/00
CPC分类号： G21C11/00 , G21C3/07 , Y02E30/40
摘要： A method of reducing hydrogen absorption in fuel assembly components fabricated from zirconium alloys in a nuclear reactor is provided. The method includes, in an exemplary embodiment, depositing at least one noble metal on at least one surface of the fuel assembly component. Depositing at least one noble metal includes exposing the zirconium alloy fuel assembly components, outside the nuclear reactor, to an aqueous solution including at least one compound containing at least one noble metal.
摘要翻译：提供了一种在核反应堆中减少由锆合金制成的燃料组件部件中的氢吸收的方法。在示例性实施例中，该方法包括在燃料组件部件的至少一个表面上沉积至少一种贵金属。沉积至少一种贵金属包括将核反应堆外的锆合金燃料组合物组分暴露于包含至少一种含有至少一种贵金属的化合物的水溶液中。

30. 发明授权

US06681153B1 Automated, interactive data collection, data transmittal and data assessment method 失效
标题翻译：自动化，交互式数据收集，数据传输和数据评估方法
公开(公告)号：US06681153B1
公开(公告)日：2004-01-20
申请号：US09631373
申请日：2000-08-02
申请人： Ronald Martin Horn , Samson Hettiarachchi , James Maclain Huff , Jenny Y. Mui
发明人： Ronald Martin Horn , Samson Hettiarachchi , James Maclain Huff , Jenny Y. Mui
IPC分类号： G05B1500
CPC分类号： G05B17/02 , Y02P90/18 , Y02P90/22
摘要： A method of monitoring process parameters and process effectiveness over a global network enables multiple processing sites to utilize globally compiled field data to determine process parameters and the like. Application parameters are received from multiple processing sites over the global network, and post-application data is received from the multiple processing sites at preset time intervals. The application parameters and the post-application data are analyzed to determine analytical models for future application parameters, which are accessible by system users via the global network.
摘要翻译：通过全局网络监视过程参数和过程有效性的方法使得多个处理站点能够利用全局编译的字段数据来确定过程参数等。通过全球网络从多个处理站点接收应用参数，并且以预设的时间间隔从多个处理站点接收应用后数据。分析应用参数和应用后数据，以确定未来应用参数的分析模型，系统用户可以通过全球网络访问应用参数。

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