公开(公告)号：US09394175B2

公开(公告)日：2016-07-19

申请号：US14858981

申请日：2015-09-18

Applicant: Massachusetts Institute of Technology

Inventor： Anastasios John Hart ,  Brian L. Wardle ,  Enrique J. Garcia ,  Alexander H. Slocum

IPC: C01B31/02 ,  D01F9/12 ,  D01F9/127

CPC classification number: C01B31/024 ,  B01J21/04 ,  B01J23/745 ,  B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/158 ,  C01B32/16 ,  C01B32/162 ,  C01B32/164 ,  C01B32/18 ,  C01B2202/08 ,  D01F9/127 ,  D01F9/133 ,  D06M11/74 ,  D06M23/08 ,  Y02P20/582 ,  Y02P20/584 ,  Y10S977/742 ,  Y10S977/843

Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

Abstract translation: 本发明提供了在衬底的表面上纳米结构例如纳米管（例如，碳纳米管）均匀生长的方法，其中纳米结构的长轴可以基本上对齐。 纳米结构可以进一步加工以用于各种应用中，例如复合材料。 例如，可以将一组对准的纳米结构体在本体或另一表面中形成并转移到另一种材料上以增强材料的性质。 在一些情况下，纳米结构可以增强材料的机械性能，例如在两个材料或层之间的界面处提供机械加强。 在一些情况下，纳米结构可以增强材料的热和/或电子性质。 本发明还提供用于生长纳米结构的系统和方法，包括间歇方法和连续方法。

公开(公告)号：US20160023904A1

公开(公告)日：2016-01-28

申请号：US14444845

申请日：2014-07-28

Applicant: Massachusetts Institute of Technology ,  University of Michigan, The Board of Regents Acting For and On behalf of the C/O Technology Man

Inventor： Anastasios John Hart ,  Sei Jin Park ,  Sameh Hani Tawfick ,  Michael FI De Volder

IPC: C01B31/02 ,  C23C16/52

CPC classification number: C01B31/0233 ,  B81C1/00626 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/06 ,  C01B2202/08 ,  C01B2202/20 ,  C01B2202/36 ,  C23C16/52

Abstract: The present invention generally relates to articles comprising microstructures and methods for forming microstructures. The microstructures may be mechanically coupled to impart complex three dimensional shapes. For example, one or more microstructures may be grown on a substrate at different average growth rates, resulting in curved microstructures.

Abstract translation: 本发明一般涉及包含微结构的制品和用于形成微结构的方法。 微结构可以机械耦合以赋予复杂的三维形状。 例如，一个或多个微结构可以以不同的平均生长速率在衬底上生长，导致弯曲的微结构。

公开(公告)号：US20230182235A1

公开(公告)日：2023-06-15

申请号：US18070151

申请日：2022-11-28

Applicant: Massachusetts Institute of Technology

Inventor： Ryan Wade Penny ,  Anastasios John Hart

IPC: B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/03 ,  B23K26/06 ,  B23K26/073 ,  B23K26/082 ,  B23K26/70 ,  B23K26/0622 ,  B29C64/30 ,  B29C64/393

CPC classification number: B23K26/342 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/032 ,  B23K26/0626 ,  B23K26/073 ,  B23K26/0821 ,  B23K26/70 ,  B23K26/0622 ,  B29C64/30 ,  B29C64/393 ,  G01N21/95

Abstract: Systems, devices, and methods for additive manufacturing are provided that allow for components being manufactured to be assessed during the printing process. As a result, changes to a print plan can be considered, made, and implemented during the printing process. More particularly, in exemplary embodiments, a spectrometer is operated while a component is being printed to measure one or more parameters associated with one or more layers of the component being printed. The measured parameter(s) are then relied upon to determine if any changes are needed to the way printing is occurring, and if such changes are desirable, the system is able to implement such changes during the printing process. By way of non-limiting examples, printed material in one or more layers may be reheated to alter the printed component, such as to remove defects identified by the spectrometer data. A variety of systems, devices, and methods for performing real-time sensing and control of an additive manufacturing process are also provided.

公开(公告)号：US11535006B2

公开(公告)日：2022-12-27

申请号：US16475533

申请日：2018-01-05

Applicant: Massachusetts Institute of Technology

Inventor： Sanha Kim ,  Anastasios John Hart ,  Kevin Turner ,  Yijie Jiang

IPC: B32B5/26 ,  B32B5/12 ,  B32B9/00 ,  B32B18/00 ,  B32B7/025

Abstract: An apparatus for manipulating an object includes a substrate, an electrically conductive layer disposed on the substrate, and a porous medium comprising an electrically conductive material. The apparatus also includes a dielectric layer conformally disposed on the porous medium to insulate the porous medium from the object during use. The porosity of the porous medium is about 90% or greater. The adhesive strength of the porous medium is about 1 kPa or lower, and the modulus of the porous medium is about 1 GPa or lower.

公开(公告)号：US20210300009A1

公开(公告)日：2021-09-30

申请号：US17163936

申请日：2021-02-01

Applicant: Massachusetts Institute of Technology

Inventor： Brian L. Wardle ,  Anastasios John Hart ,  Enrique J. Garcia ,  Alexander H. Slocum

IPC: B32B37/02 ,  C01B32/162 ,  C01B32/18 ,  B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C08J5/00 ,  D01F9/127 ,  D01F9/133

Abstract: The present invention provides methods for uniform growth of nanostructures such as nanotubes (e.g., carbon nanotubes) on the surface of a substrate, wherein the long axes of the nanostructures may be substantially aligned. The nanostructures may be further processed for use in various applications, such as composite materials. For example, a set of aligned nanostructures may be formed and transferred, either in bulk or to another surface, to another material to enhance the properties of the material. In some cases, the nanostructures may enhance the mechanical properties of a material, for example, providing mechanical reinforcement at an interface between two materials or plies. In some cases, the nanostructures may enhance thermal and/or electronic properties of a material. The present invention also provides systems and methods for growth of nanostructures, including batch processes and continuous processes.

公开(公告)号：US11131609B2

公开(公告)日：2021-09-28

申请号：US15497761

申请日：2017-04-26

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Emily Hanhauser ,  Michael Bono ,  Anastasios John Hart ,  Rohit Karnik ,  Xiaoyuan Ren ,  Chintan Vaishnav

IPC: G01N1/40 ,  G01N1/10 ,  B01L3/00 ,  G01N1/12 ,  G01N1/20 ,  B01D15/18 ,  B01J20/28 ,  B01J20/26 ,  B01J20/34 ,  C02F1/28 ,  C02F1/42 ,  C12Q1/6806 ,  G01N1/00 ,  C02F101/10 ,  C02F101/20

Abstract: A device for collecting contaminants from water samples is provided. The device includes a solid sorbent that collects and stores the contaminants from water samples. The solid sorbent is configured to allow for the preservation of the stored contaminants. The concentrations of the contaminants in the water samples are determined via analysis of the solid sorbent or via elution of the stored contaminants from the sorbent and analysis of the eluate solution.

公开(公告)号：US20200254718A1

公开(公告)日：2020-08-13

申请号：US16475533

申请日：2018-01-05

Applicant: Massachusetts Institute of Technology ,  The Trustees of the University of Pennsylvania

Inventor： Sanha Kim ,  Anastasios John Hart ,  Kevin Turner ,  Yijie Jiang

IPC: B32B5/26 ,  B32B9/00 ,  B32B18/00 ,  B32B5/12

Abstract: An apparatus for manipulating an object includes a substrate, an electrically conductive layer disposed on the substrate, and a porous medium comprising an electrically conductive material. The apparatus also includes a dielectric layer conformally disposed on the porous medium to insulate the porous medium from the object during use. The porosity of the porous medium is about 90% or greater. The adhesive strength of the porous medium is about 1 kPa or lower, and the modulus of the porous medium is about 1 GPa or lower.

公开(公告)号：US10562227B2

公开(公告)日：2020-02-18

申请号：US15260813

申请日：2016-09-09

Applicant: Massachusetts Institute of Technology

Inventor： Jamison Go ,  Anastasios John Hart

IPC: B29C64/209 ,  B33Y30/00 ,  B29C64/20 ,  B29C64/118 ,  B29C48/02 ,  B29C48/00 ,  B29C48/285 ,  B29C48/86

Abstract: Printing devices and methods are provided that utilize high throughput extrusion to generate a printer material, such as a three-dimensional object. High-throughput extrusion systems as provided volumetrically pre-heat an extruded filament to a desired pre-heat temperature, and then either maintain or heat the extruded filament to a desired melt temperature prior to having the filament extruded out of the system and onto a surface, such as a build platform. By pre-heating the filament prior to heating it to the temperature at which it is excluded, it helps increase the throughput of the system. Likewise, by doing the heating volumetrically, it further helps increase the throughput of the system. Various embodiments of devices and methods typically used for printing in conjunction with the disclosed high throughput systems are also provided.

公开(公告)号：US20200016820A1

公开(公告)日：2020-01-16

申请号：US16513700

申请日：2019-07-16

Applicant: Massachusetts Institute of Technology

Inventor： Ryan Wade Penny ,  Anastasios John Hart

IPC: B29C64/10 ,  B29C64/245 ,  B29C64/277 ,  B29C64/227 ,  B29C64/393 ,  B29C64/286

Abstract: Systems, devices, and methods for additive manufacturing as disclosed allow for improved optical access to a build platform. In at least some embodiments a multiplexing optic of an additive manufacturing device is configured to multiplex an arbitrary number of optical paths to a build platform along a substantially common optical axis by dividing a theoretical input aperture of the multiplexing optic into a plurality of sub-apertures. Each sub-aperture can independently receive and direct an optical path to the build platform. An optical path can be a light path from a light source or an optical process monitoring path from an optical process monitoring system or optical process monitoring device. In some embodiments, an optical path can enter the multiplexing optic off-axis and/or off-angle with respect to an optical axis of the multiplexing optic. The multiplexing optic can include one or more lens elements and/or one or more mirror elements.

公开(公告)号：US20200016657A1

公开(公告)日：2020-01-16

申请号：US16513702

申请日：2019-07-16

Applicant: Massachusetts Institute of Technology

Inventor： Anastasios John Hart ,  Ryan Wade Penny ,  Martin C. Feldmann ,  Jonathan S. Gibbs ,  Stuart P. Baker

IPC: B22F3/105

Abstract: Disclosed are systems, devices, and methods for additive manufacturing that allow for control of composition and/or porosity of components being manufactured. More particularly, in exemplary embodiments, a secondary material can be used in conjunction with a primary feedstock material in a spatially controlled manner during an additive manufacturing process to control a composition of materials and/or porosity of a manufactured component. Systems, devices, and methods for additive manufacturing are also disclosed that allow for control of a pressure of an atmosphere surrounding a build surface during an additive manufacturing process. More particularly, a pressure of an atmosphere surrounding a build surface can be raised to a pressure greater than standard atmospheric pressure. Various features of the exemplary embodiments of the systems, devices, and methods disclosed can be used together to further control for composition and/or porosity and quality of a manufactured part.