公开(公告)号：US20030054156A1

公开(公告)日：2003-03-20

申请号：US10158600

申请日：2002-05-30

Applicant: The Ohio State University Research Foundation

Inventor： Kenneth H. Sandhage ,  Pragati Kumar

IPC: B32B005/14 ,  C04B035/00

CPC classification number: C22C1/1036 ,  C04B35/622 ,  Y10T428/249957

Abstract: The present invention is a method for fabricating shaped monolithic ceramics and ceramic composites, and the ceramics and composites made thereby. The method of the present invention includes three basic steps: (1) Synthesis or other acquisition of a porous preform with an appropriate composition, pore fraction, and overall shape is prepared or obtained. The pore fraction of the preform is tailored so that the reaction-induced increase in solid volume can compensate partially or completely for such porosity. It will be understood that the porous preform need only be sufficiently dimensionally stable to resist the capillary action of the infiltrated liquid reactant; (2) Infiltration: The porous preform is infiltrated with a liquid reactant; and (3) Reaction: The liquid reactant is allowed to react partially or completely with the solid preform to produce a dense, shaped body containing desired ceramic phase(s). The reaction in step (3) above is a displacement reaction of the following general type between a liquid species, M(l), and a solid preform comprising the compound, NBXC(s): AM(l)nullNBXC(s)nullAMXC/A(s)nullBN(l/g) where MXC/A(s) is a solid reaction product (X is a metalloid element, such as, for example, oxygen, nitrogen, sulfur, etc.) and N(l/g) is a fluid (liquid or gas) reaction product. A, B and C are molar coefficients.

Abstract translation: 本发明是一种制造成形的整体陶瓷和陶瓷复合材料的方法，以及由此制成的陶瓷和复合材料。 本发明的方法包括三个基本步骤：（1）制备或获得具有适当组成，孔隙分数和整体形状的多孔预型体的合成或其它方法。 定制预制件的孔隙分数，使得反应引起的固体体积增加可以部分地或完全地补偿这种孔隙率。 应当理解，多孔预成型件仅需要足够的尺寸稳定性以抵抗渗透的液体反应物的毛细管作用; （2）渗透：多孔预型体用液体反应物渗透; 和（3）反应：使液体反应物部分或完全与固体预成型体反应，以产生含有所需陶瓷相的致密的成型体。 上述步骤（3）中的反应是液体物质M（1）和包含该化合物NBXC的固体预制品之间的以下通用类型的置换反应：AM（1）+ NBXC（s）= AMXC / A（s）+ BN（1 / g）其中MXC / A（s）是固体反应产物（X是类金属元素，例如氧，氮，硫等）和N（ l / g）是流体（液体或气体）反应产物。 A，B和C是摩尔系数。

公开(公告)号：US20030044515A1

公开(公告)日：2003-03-06

申请号：US10225836

申请日：2002-08-22

Applicant: The Ohio State University

Inventor： Kenneth H. Sandhage

IPC: B05D003/00 ,  C23C016/24 ,  H05H001/24

CPC classification number: B81C1/00

Abstract: The purpose of the present invention is to describe a novel approach for converting 3-dimensional, synthetic micro- and nano-templates into different materials with a retention of shape/dimensions and morphological features. The ultimate objective of this approach is to mass-produce micro- and nano-templates of tailored shapes through the use of synthetic or man-made micropreforms, and then chemical conversion of such templates by controlled chemical reactions into near net-shaped, micro- and nano-components of desired compositions. The basic idea of this invention is to obtain a synthetic microtemplate with a desired shape and with desired surface features, and then to convert the microtemplate into a different material through the use of chemical reactions.

Abstract translation: 本发明的目的是描述一种用于将三维，合成的微型和纳米模板转换成具有保持形状/尺寸和形态特征的不同材料的新方法。 这种方法的最终目标是通过使用合成或人造微变形模块大规模生产定制形状的微米和纳米模板，然后通过受控化学反应将这些模板化学转化成近网状， 和所需组合物的纳米组分。 本发明的基本思想是获得具有所需形状和所需表面特征的合成微型模板，然后通过使用化学反应将微模板转化为不同的材料。

公开(公告)号：US20030039693A1

公开(公告)日：2003-02-27

申请号：US10160292

申请日：2002-05-30

Applicant: The Ohio State University

Inventor： Kenneth H. Sandhage

IPC: B27N003/08 ,  A61K009/14 ,  C23C016/00

CPC classification number: G01N33/54346 ,  B81B2201/034 ,  B81B2201/035 ,  B81C1/00 ,  B81C99/0085 ,  G01N33/54353 ,  G01N33/544 ,  Y10S977/811 ,  Y10S977/84 ,  Y10S977/89 ,  Y10S977/90

Abstract: The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of naturally-derived, biocatalytically-derived, and/or genetically-tailored three-dimensional microtemplates (e.g., frustules of diatoms, microskeletons of radiolarians, shells of mollusks) with desired dimensional features, followed by reactive conversion of such microtemplates into microcomponents with desired compositions that differ from the starting microtemplate and with dimensional features that are similar to those of the starting microtemplate. Because the shapes of such microcomponents may be tailored through genetic engineering of the shapes of the microtemplates, such microcomposites are considered to be Genetically-Engineered Materials (GEMs).

Abstract translation: 本发明集中在用于大规模生产三维微型组件的革命性的低成本（高度可扩展）方法：天然衍生的，生物催化衍生的和/或基因定制的三维微型模板的生物繁殖 （例如，硅藻的截头圆锥体，放射体的微骨架，软体动物的壳）具有所需的尺寸特征，随后将这种微模板反应转化成具有与起始微模板不同的所需组成的微组件，并具有与起始微模板类似的尺寸特征 微模板。 因为这些微型组件的形状可以通过微模板的形状的基因工程来定制，所以这种微复合材料被认为是基因工程材料（GEM）。

公开(公告)号：US20030099763A1

公开(公告)日：2003-05-29

申请号：US10158582

申请日：2002-05-30

Applicant: The Ohio State University

Inventor： Kenneth H. Sandhage

IPC: B05D003/00 ,  B01J013/00 ,  A61J001/00

CPC classification number: G01N33/54346 ,  B81B2201/034 ,  B81B2201/035 ,  B81C1/00 ,  B81C99/0085 ,  G01N33/54353 ,  G01N33/544 ,  Y10S977/811 ,  Y10S977/84 ,  Y10S977/89 ,  Y10S977/90

Abstract: The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of naturally-derived, biocatalytically-derived, and/or genetically-tailored three-dimensional microtemplates (e.g., frustules of diatoms, microskeletons of radiolarians, shells of mollusks) with desired dimensional features, followed by reactive conversion of such microtemplates into microcomponents with desired compositions that differ from the starting microtemplate and with dimensional features that are similar to those of the starting microtemplate. Because the shapes of such microcomponents may be tailored through genetic engineering of the shapes of the microtemplates, such microcomposites are considered to be Genetically-Engineered Materials (GEMs).

Abstract translation: 本发明集中在用于大规模生产三维微型组件的革命性的低成本（高度可扩展）方法：天然衍生的，生物催化衍生的和/或基因定制的三维微型模板的生物繁殖 （例如，硅藻的截头圆锥体，放射体的微骨架，软体动物的壳）具有所需的尺寸特征，随后将这种微模板反应转化成具有与起始微模板不同的所需组成的微组件，并具有与起始微模板类似的尺寸特征 微模板。 由于这些微型组件的形状可以通过微型模板的形状的遗传工程来定制，所以这种微复合材料被认为是基因工程材料（GEM）。