公开(公告)号：US20240402070A1

公开(公告)日：2024-12-05

申请号：US18672433

申请日：2024-05-23

Applicant: MAZDA MOTOR CORPORATION

Inventor： Katsunobu SASAKI ,  Teruaki ASADA ,  Tatsuya EZAKI

IPC: G01N17/00 ,  G01N17/02

Abstract: A corrosion resistance test method for a coated metal material, the method including: a preparation step of arranging one or two containers holding a water-containing material and one or two electrodes, and electrically connecting the electrode and the metal base to each other or the two electrodes to each other; a current supply step of supplying a current between the electrode serving as an anode and the metal base serving as a cathode or between one of the two electrodes serving as an anode and the other electrode serving as a cathode to cause corrosion of the coated metal material to progress; a calculation step of calculating a progress degree of the corrosion; a correction step of correcting the progress degree based on a posture of the test target portion; and an evaluation step of evaluating corrosion resistance based on a correction value for the progress degree.

公开(公告)号：US12130241B2

公开(公告)日：2024-10-29

申请号：US18093032

申请日：2023-01-04

Applicant: Microchip Technology Incorporated

Inventor： Yaojian Leng

IPC: G01N21/95 ,  G01N17/02 ,  G01N21/47 ,  G01N21/88 ,  H01L21/66 ,  H01L23/522 ,  H01L23/528 ,  H01L23/532 ,  H01L31/02 ,  H01L31/103

CPC classification number: G01N21/9501 ,  G01N17/02 ,  G01N21/47 ,  G01N21/8851 ,  H01L22/14 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/53238 ,  H01L31/02005 ,  H01L31/103 ,  G01N2021/4735 ,  G01N2201/06113

Abstract: Systems and methods for monitoring copper corrosion in an integrated circuit (IC) device are disclosed. A corrosion-sensitive structure formed in the IC device may include a p-type active region adjacent an n-type active region to define a p-n junction space charge region. A copper region formed over the silicon may be connected to both the p-region and n-region by respective contacts, to thereby define a short circuit. Light incident on the p-n junction space charge region, e.g., during a CMP process, creates a current flow through the metal region via the short circuit, which drives chemical reactions that cause corrosion in the copper region. Due to the short circuit configuration, the copper region is highly sensitive to corrosion. The corrosion-sensitive structure may be arranged with less corrosion-sensitive copper structures in the IC device, with the corrosion-sensitive structure used as a proxy to monitor for copper corrosion in the IC device.

公开(公告)号：US12105011B2

公开(公告)日：2024-10-01

申请号：US17863248

申请日：2022-07-12

Applicant: TITAN HRE LLC

Inventor： Jeffrey Tinnea ,  Ryan Tinnea ,  Pierce Nichols

IPC: G01N17/00 ,  C23F13/04 ,  G01N17/02

CPC classification number: G01N17/02 ,  C23F13/04

Abstract: A sensor system is installed adjacent to the buried or submerged metallic pipelines using a plurality of sensors and transceivers. The sensor system monitors the pipeline for external corrosion control and recommends maintenance and repair at specific locations in the pipeline where external corrosion has occurred. The sensor system automatically receives periodic or continuous measurements through the plurality of sensors. The various sensors at various locations adjacent to the pipelines detect irregularities in the received sensor data at specific locations of the pipeline. The sensor data are stored in the system database and can analyzed to be used for monitoring and for transmitting repair alerts. The sensor system according to the present disclosure provides a reliable and an accurate assessment of the external corrosions of the pipelines. The sensor system further obviates the need of personnel walking along the pipelines to detect corrosion.

公开(公告)号：US12061221B2

公开(公告)日：2024-08-13

申请号：US17778044

申请日：2020-11-26

Applicant: FNV IP B.V.

Inventor： Igor Konrad Dorrestijn

IPC: G01R29/12 ,  G01N17/02 ,  G01R29/08 ,  B63B17/00

CPC classification number: G01R29/0878 ,  G01N17/02 ,  G01R29/0807 ,  B63B17/00

Abstract: An electric field gradient sensor is presented, having a sensor body having an outer surface; and a plurality of electrodes distributed over the outer surface, each electrode having an electrode surface facing outward from the surface. The plurality of electrodes are arranged forming a plurality of electrode pairs, each electrode pair formed by a first electrode and a second electrode located on opposite sides of the sensor body. This sensor enables three-dimensional measurements of the electric field gradient along structures located in an electrically conductive medium, such as subsea structures, for example for monitoring the cathodic protection of such structure.

公开(公告)号：US12025551B2

公开(公告)日：2024-07-02

申请号：US17671472

申请日：2022-02-14

Applicant: ITT ITALIA S.R.L.

Inventor： Agustin Sin Xicola ,  Lorenzo Fedrizzi ,  Francesco Andreatta ,  Alessandro De Nicolo

IPC: B60T8/172 ,  G01N17/02 ,  G01N19/04 ,  G01N27/416 ,  G01N27/48

CPC classification number: G01N17/02 ,  G01N27/4161 ,  G01N27/48 ,  B60T8/172 ,  G01N19/04

Abstract: Methods and equipment for determining conditions of adhesion between a first and a second mechanical element are disclosed. The mechanical elements are attached respectively to a first and second support, which are immersed in an electrolyte together with a counter-electrode and a reference electrode to form an electrochemical cell. The second mechanical element is a working electrode being connected to an insulated electric wire that is also connected to the counter-electrode. A first uncovered face of the second element is pressed against the first element. A potential is applied to the second element of at least one predetermined value and/or a predetermined electrical current. The method can include detecting the electrical current that is transmitted through the electrolyte as a function of the potential applied and/or the potential that is established as a function of the predetermined current.

公开(公告)号：US11975381B2

公开(公告)日：2024-05-07

申请号：US16651463

申请日：2018-10-09

Applicant: Geobrugg AG

Inventor： Corinna Wendeler-Goeggelmann

IPC: B21F27/00 ,  E04B2/86 ,  E04H17/04 ,  G01N17/00 ,  G01N17/02

CPC classification number: B21F27/00 ,  E04B2/8658 ,  E04H17/05 ,  G01N17/00 ,  G01N17/02

Abstract: A wire netting device, in particular safety net device, includes at least two mutually engaging net elements, at least one net element of which is produced from at least one single wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one wire that is made at least partially of a high-tensile steel, the wire comprises at least one corrosion protection, in particular a corrosion protection layer and a portion of the wire (12a-g), in particular at least a portion of a wire mesh implemented of the wire, with the corrosion protection, in particular the corrosion protection layer, in a test run by an alternating climate test has a corrosion resistance of more than 1,680 hours, preferably more than 2,016 hours, advantageously more than 2,520 hours, preferentially more than 3,024 hours and particularly preferably more than 3,528 hours.

公开(公告)号：US11962044B2

公开(公告)日：2024-04-16

申请号：US17107100

申请日：2020-11-30

Applicant: INSTITUTO MEXICANO DEL PETROLEO

Inventor： Eliceo Sosa Hernandez ,  Marco Antonio Dominguez Aguilar ,  Hongbo Liu ,  Jorge Luis Alamilla Lopez ,  Jorge Flores Castillo ,  Marco Antonio Hernandez Rojo ,  Ivan Velazquez Ovando ,  Cesar Mendez Romero ,  Luis Manuel Quej Ake

IPC: H01M50/571 ,  G01N17/02 ,  H01M50/30 ,  H01M50/578

CPC classification number: H01M50/578 ,  G01N17/02 ,  H01M50/30 ,  H01M50/571

Abstract: The present invention offers some general specifications for the design, assembly, and adaptation of a rotating cylinder electrochemical cell into an autoclave, of a high temperature and pressure system for corrosion studies that simulate operating conditions in pipelines, as well as the operation and safety of an autoclave to evaluate the electrochemical process of metal surfaces exposed to aggressive aqueous solutions. The electrochemical cell consists of an array of three electrodes that include a rotating cylinder electrode designed to operate hermetically, a reference electrode and an auxiliary electrode. The rotating cylinder electrode is considered to be the working electrode, where the oxidation and electrochemical reduction processes are studied. However, the use of the method described in this work can be extended to other testing environments and materials by taking into account the physical and chemical properties of the fluids and materials to be used in order to avoid any risk for the operator.

公开(公告)号：US20240110861A1

公开(公告)日：2024-04-04

申请号：US17768645

申请日：2020-08-20

Applicant: Byeong Ho KI

Inventor： Byeong Ho KI

IPC: G01N17/04 ,  G01N17/00 ,  G01N17/02

CPC classification number: G01N17/04 ,  G01N17/006 ,  G01N17/02

Abstract: Proposed is a multifunctional corrosion probe system that can sense both general corrosion and focusing corrosion of a pipe on the basis of physical changes of stacked specimens. The multifunctional corrosion probe system includes a sensing unit having a plurality of specimens and a plurality of insulating layers, which are alternately stacked, and configured to be inserted into a pipe, anode wires having first ends installed on first sides of the plurality of specimens, respectively, cathode wires having second ends installed on second sides of the plurality of specimens, respectively, a power control unit to which second ends of the plurality of anode wires and second ends of the plurality of cathode wires are connected, and a graph output unit connected with the power control unit, estimating a current that is output from the power control unit, and outputting a resistance graph and a current graph.

公开(公告)号：US11906455B2

公开(公告)日：2024-02-20

申请号：US18066642

申请日：2022-12-15

Applicant: GIATEC SCIENTIFIC INC.

Inventor： Pouria Ghods ,  Rouhollah Alizadeh ,  Mustafa Salehi

IPC: G01R27/08 ,  G01N27/04 ,  G01N17/02 ,  G01N33/38 ,  G01N27/02 ,  G01N17/04 ,  G01L1/10 ,  G01N17/00 ,  G01L1/20 ,  G01L1/22 ,  G01R27/00

CPC classification number: G01N27/04 ,  G01N17/02 ,  G01N17/04 ,  G01N27/02 ,  G01N27/026 ,  G01N33/383 ,  G01L1/10 ,  G01L1/20 ,  G01L1/22 ,  G01N17/00 ,  G01N17/006 ,  G01R27/00

Abstract: Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

公开(公告)号：US11799157B1

公开(公告)日：2023-10-24

申请号：US17207678

申请日：2021-03-21

Applicant: NWCAT LLC

Inventor： Christopher L. Moore

IPC: F24H9/45 ,  H01M50/148 ,  H01M50/172 ,  G01N17/02 ,  F24H1/18

CPC classification number: H01M50/148 ,  F24H9/45 ,  H01M50/172 ,  F24H1/186 ,  G01N17/02

Abstract: Provided is an anode assembly cap for selective interconnection to a tank, for example. The anode assembly cap generally includes a flange with interconnected wall configured to surround at least a portion of an anode. When installed, the anode assembly facilitates electron transfer from the tank/anode assembly interface. The anode assembly creates a closed system with respect to the tank, wherein information transfer associated with the interconnection between the anode assembly and the storage tank is minimized or prevented.