CN101746718B - Method for preparing single-row ordered nanobelt - Google Patents
Method for preparing single-row ordered nanobelt Download PDFInfo
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- CN101746718B CN101746718B CN200910251712A CN200910251712A CN101746718B CN 101746718 B CN101746718 B CN 101746718B CN 200910251712 A CN200910251712 A CN 200910251712A CN 200910251712 A CN200910251712 A CN 200910251712A CN 101746718 B CN101746718 B CN 101746718B
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Abstract
The invention discloses a method for preparing single-row ordered nanobelts, comprising the following steps: matching and mixing by weight percent of eutectic points on a binary eutectic phase diagram, heating melting, condensing and nano-cutting along the sheet-shaped growth direction of lamellar eutectic alloys to obtain the single-row ordered nanobelts. The binary eutectic alloys of the nanobelts prepared by the method are mutually and uniformly arranged and grow in a sheet shape, and the preparation method is simple and is easy to operate.
Description
Technical field
The present invention relates to field of nanometer material technology, specifically is a kind of method for preparing single-row ordered nanobelt.
Background technology
Eutectic reaction is meant at a certain temperature, the reaction that the crystallization simultaneously of the liquid of certain ingredients goes out the solid phase of two kinds of certain ingredients.For example phosphorus content is the iron-carbon alloy of 2.11-6.69%, and eutectic reaction takes place under 1148 degrees centigrade constant temperature, and product is the mechanical impurity of austenite (solid-state) and cementite (solid-state), is called " ledeburite ".On alloy phase diagram, this takes place be reflected at and show as on the figure a bit, that point is exactly an eutectic point.The reaction that the crystallization simultaneously under constant temperature of a kind of liquid phase goes out two kinds of solid phases is called eutectic reaction.The two-phase mixture that is generated is eutectic.The simplest eutectic reaction is in the bianry alloy system, has the liquid L of eutectic composition, under eutectic temperature, solidifies simultaneously to form two solid phase a and cutter eutectic structure.Usually represent with formula L buddhist a+ cutter.Under this eutectic reaction temperature, L, a and cutter three-phase coexistence appear.The alloy that solidifies in this way is an eutectic alloy.The alloy structure that departs from eutectic composition is a hypoeutectic or hypereutectic.
Summary of the invention
The invention provides a kind of method for preparing single-row ordered nanobelt, the binary eutectic alloy of prepared nano belt is evenly distributed each other, and growth in the form of sheets, and the preparation method is simple, and is easy to operate.
Technical scheme of the present invention is:
A kind of method for preparing single-row ordered nanobelt is characterized in that: may further comprise the steps:
Two kinds of materials that (1), can be grown to serve as the eutectiferous binary eutectic alloy of synusia shape carry out proportioning by the percentage by weight of eutectic point on its binary eutectic phasor; Hybrid Heating fusing then; Mixed then alloy material is cooled and solidified at room temperature, makes the alloy of eutectic composition;
(2), the alloy of eutectic composition is cut into the hexahedron sample through the wire cutting machine line, then the surface of hexahedron alloy polish, polishing;
(3), the hexahedron alloy after will polishing adopts the method for chemical etching, confirms the lamellar growth direction of synusia shape eutectic alloy;
(4), the lamellar growth direction of the synusia shape eutectic alloy of the hexahedron alloy after will polishing after confirm carries out surface orientation nanometer slicing treatment and forms two kinds of single-row ordered nanobelts that material is arranged parallel to each other, the thickness of section is 1-1000nm.
The described method for preparing single-row ordered nanobelt is characterized in that: described two kinds of materials can infinitely dissolve each other; Below eutectic temperature, binary eutectic alloy is a solid phase by liquid phase transition, and eutectic transformation takes place, and it is immiscible to form two kinds of compositions, and the solid that is parallel to each other and grows with synusia shape structure separately, obtains synusia shape eutectic.
The described method for preparing single-row ordered nanobelt is characterized in that: described two kinds of materials that are grown to serve as the eutectiferous binary eutectic alloy of synusia shape are meant Au-Si, or Ag-Cu, Sn-Pb, Ag-Si.
The binary eutectic alloy of the nano belt that the present invention is prepared is evenly distributed each other, and growth in the form of sheets, and the preparation method is simple, and is easy to operate.
Description of drawings
Fig. 1 is the phasor of Au-Si bianry alloy.
Fig. 2 is the structural representation of hexahedron alloy of the present invention.
Fig. 3 is the structural representation of the prepared single-row ordered nanobelt of the present invention.
Fig. 4 is the single-row ordered nanobelt low power Electronic Speculum transmission plot that gold ribbon and silicon ribbon are arranged parallel to each other.
Fig. 5 is the single-row ordered nanobelt high power Electronic Speculum transmission plot that gold ribbon and silicon ribbon are arranged parallel to each other.
The specific embodiment
The preparation method of the single-row ordered nanobelt that gold (Au) band and silicon (Si) band are arranged parallel to each other:
(1), with binary eutectic alloy materials A u-Si, wherein, count by weight percentage, the content of Au is 96.84%, the content of Si is 3.16%, Hybrid Heating fusing then, mixed then metal material is cooled and solidified at room temperature, the alloy of eutectic composition;
(2), the alloy of eutectic composition is cut into the hexahedron sample through the wire cutting machine line, then the surface of hexahedron alloy polish, polishing;
(3), the hexahedron alloy after will polishing adopts the method for chemical etching, confirm synusia shape eutectic alloy the lamellar growth direction (X to or Y to, see Fig. 2);
(4), the lamellar growth direction of the synusia shape eutectic alloy of the hexahedron alloy after will polishing after confirm (X to or Y to; See Fig. 2) carry out surface orientation nanometer slicing treatment and form the single-row ordered nanobelt that gold ribbon and silicon ribbon are arranged parallel to each other, the thickness of section is 1-1000nm.
This kind method can be used for preparing the single-row ordered nanobelt of metal-semiconductor structure, and like Au-Si, Ag-Si etc. also can be used to prepare the single-row ordered nanobelt of metal-metal structure, like Ag-Cu, and Sn-Pb etc.
Claims (2)
1. method for preparing single-row ordered nanobelt is characterized in that: may further comprise the steps:
Two kinds of materials that (1), can be grown to serve as the eutectiferous binary eutectic alloy of synusia shape carry out proportioning by the percentage by weight of eutectic point on its binary eutectic phasor; Hybrid Heating fusing then; Mixed then alloy material is cooled and solidified at room temperature, makes the alloy of eutectic composition;
(2), the alloy of eutectic composition is cut into the hexahedron sample through the wire cutting machine line, then the surface of hexahedron alloy polish, polishing;
(3), the hexahedron alloy after will polishing adopts the method for chemical etching, confirms the lamellar growth direction of synusia shape eutectic alloy;
(4), the lamellar growth direction of the synusia shape eutectic alloy of the hexahedron alloy after will polishing after confirm carries out surface orientation nanometer slicing treatment and forms two kinds of single-row ordered nanobelts that material is arranged parallel to each other, the thickness of section is 1-1000nm;
Described two kinds of materials that are grown to serve as the eutectiferous binary eutectic alloy of synusia shape are meant Au-Si, or Ag-Cu, Sn-Pb, Ag-Si.
2. the 1 described method for preparing single-row ordered nanobelt as requested, it is characterized in that: described two kinds of materials can infinitely dissolve each other; Below eutectic temperature, binary eutectic alloy is a solid phase by liquid phase transition, and eutectic transformation takes place, and it is immiscible to form two kinds of compositions, and the solid that is parallel to each other and grows with synusia shape structure separately, obtains synusia shape eutectic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910251712A CN101746718B (en) | 2009-12-31 | 2009-12-31 | Method for preparing single-row ordered nanobelt |
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| CN200910251712A CN101746718B (en) | 2009-12-31 | 2009-12-31 | Method for preparing single-row ordered nanobelt |
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| CN101746718A CN101746718A (en) | 2010-06-23 |
| CN101746718B true CN101746718B (en) | 2012-09-19 |
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| CN104846430B (en) * | 2015-04-27 | 2017-04-12 | 西北工业大学 | Method for preparing continuous regular lamellar microgroove based on lamellar eutectic alloy system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1608036A (en) * | 2001-08-02 | 2005-04-20 | 3M创新有限公司 | Method of making amorphous materials and ceramics |
| US7351360B2 (en) * | 2004-11-12 | 2008-04-01 | International Business Machines Corporation | Self orienting micro plates of thermally conducting material as component in thermal paste or adhesive |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1608036A (en) * | 2001-08-02 | 2005-04-20 | 3M创新有限公司 | Method of making amorphous materials and ceramics |
| US7351360B2 (en) * | 2004-11-12 | 2008-04-01 | International Business Machines Corporation | Self orienting micro plates of thermally conducting material as component in thermal paste or adhesive |
Non-Patent Citations (1)
| Title |
|---|
| 王爱琴，等.固溶处理对快速凝固过共晶铝硅合金组织性能的影响.《特种铸造及有色合金》.2009,第29卷(第3期),219-221. * |
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