College Station, TX, United States
College Station, TX, United States
SEARCH FILTERS
Time filter
Source Type

Reddy Channu V.S.,Texas Biochemicals Inc | Ravichandran D.,Texas Biochemicals Inc | Rambabu B.,Southern University and A&M College | Holze R.,TU Chemnitz
Applied Surface Science | Year: 2014

Carbon- and graphene oxide-coated vanadium oxide nanomaterials were synthesized from a VOSO4 sol using a hydrothermal method to prepare electrodes for lithium ion batteries. The synthesized materials were characterized using x-ray diffraction, scanning electron microscopy and transmission electron microscopy. Electrochemical results show that graphene oxide coated vanadium oxide electrodes have higher capacity than the carbon coated ones. © 2014 Elsevier B.V.


Channu V.S.R.,Texas Biochemicals Inc | Ravichandran D.,Texas Biochemicals Inc | Rambabu B.,Southern University and A&M College | Holze R.,TU Chemnitz
Colloids and Surfaces A: Physicochemical and Engineering Aspects | Year: 2014

Lithium nickel manganese cobalt oxide (LiNi0.4Mn0.4Co0.2O2) was synthesized without and with using chelating (oxalic acid and citric acid) agents and characterized by X-ray powder diffraction, thermal gravimetry, magnetic measurements, scanning electron microscopy and transmission electron microscopy. Structural results showed that particles crystallized in the R3-m structural symmetry similar to the α-NaFeO2 structure as a single phase except Li2MnO3 impurity. The compounds were investigated as positive electrode materials in secondary lithium ion batteries, discharge profiles are reported. Oxalic acid assisted LiNi0.4Mn0.4Co0.2O2 cathode has higher specific capacity than simple LiNi0.4Mn0.4Co0.2O2 and citric acid assisted LiNi0.4Mn0.4Co0.2O2.. © 2014 Elsevier B.V.


Grant
Agency: Department of Defense | Branch: Air Force | Program: STTR | Phase: Phase I | Award Amount: 150.00K | Year: 2014

ABSTRACT: To fabricate transparent ceramics composed of anisotropic laser gain media, the crystal orientations of micro-domains should be aligned identically. Current method involve application of high magnetic field. Texas Biochemicals Inc. recently developed a novel technology to produce faceted hexagonal prism c axis oriented Yb: Sr-FAP [Yb: Sr5(PO4)3F nanocrystallites and sintered into transparent ceramics via a proprietary sintering route in house. In Phase-I project, Texas Biochemicals Inc., will advance the manufacturing technology for large scale production of Yb:Sr-FAP faceted hexagonal nano-crystallites and sinter into a transparent ceramics of size 1 inch disk samples. This technology is environmentally benign and cost effective, to produce large scale Yb:Sr-FAP transparent ceramics for high energy laser applications. Cost estimation and a path forward to manufacture sizes needed by the US Air Force will also be addressed in Phase I. The resultant sintered product will be highly durable, chemically stable, having twice the order of magnitude in mechanical strength when compared to the existing product. On a follow on Phase-II project this technology will be commercialized by a leading laser manufacturer who is very much interested in this technology. BENEFIT: It is anticipated that this technology development will be useful to the DoD for high energy laser applications, directed energy weapons, advanced countermeasures against heat seeking missile applications. Military applications will also include transparent armor, windshields and blast shields. Commercial applications include laser eye surgery, artificial bone replacement, high intensity industrial lighting, commercial laser gain products, and optical ceramics, such as high temperature envelopes for metal gas lamps. An environmental impact can also be expected, if solar concentrators can be utilized with these transparent materials.


Grant
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase I | Award Amount: 120.00K | Year: 2010

Multispectral ZnS is a window material for long wave-infrared (LWIR) in the range (0.5-12 microns). The main drawback of ZnS is an insufficient chemical and mechanical strength which leads to optical degradation of the window''s properties. Current processes involve Chemical Vapor Deposition and Hot Isostatic Pressing (HIP) resulting in high costs, longer heating schedules, and with low yields. Texas Biochemicals Inc, recently developed a novel technology to produce spherical ZnS nanopowders in house. In Phase-I project, Texas Biochemicals Inc., will advance the manufacturing technology for large scale production. This technology is environmentally benign and cost effective, to produce large scale spherical ZnS nanopowders. This nanopowder containing suitable additives will prevent grain growth of the final sintered ZnS product and still retaining high transparency in the 0.5-12 microns region. The resultant sintered product will be highly durable, chemically stable, having twice the order of magnitude in mechanical strength when compared to windows and domes that are currently existing. These multi-mode windows and domes will serve for the next generation of sensors for missiles and surveillance systems. On a follow on Phase-II project this technology will be commercialized by a leading LWIR manufacturer who is very much interested in this technology.


Patent
Texas Biochemicals Inc | Date: 2013-05-29

A method is provided for producing an article which is transparent to visible and infrared radiation. The method includes the steps of forming a green body from a population of nanoparticles; depositing a layer of ZnS powder over the green body, thereby producing a covered green body; and sintering the covered green body, thereby producing a sintered product.


Grant
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase II | Award Amount: 729.72K | Year: 2012

Highly pure ZnS having high mechanical strength is needed for military aircraft window and missile dome applications to withstand erosion by high velocity rain droplets and sand particles. Current manufacturing processes involve high-temperature and high-pressure equipment, long processing times, and give low yields leading to high costs. To address this problem, Texas Biochemicals Inc., has invented a novel environmentally benign technology and demonstrated its proof-of-concept during the Phase-I project. Key results demonstrated our ability to consistently reproduce unagglomerated, mono-dispersed, spherical ZnS nanopowders of ~100 nm in size. Consolidation of this ultra high pure (99.9%) ZnS nanopowders produced ultra high density optical ceramics showing nano-grained structures with a mechanical strength three times that of existing ZnS products. In the proposed Phase-II project, processes will be scaled-up to produce multi-kilogram quantities of metal-sulfide powders (<50 nm) with the above mentioned properties to engineer next-generation missile sensor windows and domes. Collaboration with a leading LWIR manufacturer is established to evaluate samples and provide technical guidance. Their input described under Phase II tasks and the letter of support attached demonstrates their intention to become a commercialization partner leading to near term technology utilization potential.


Grant
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 80.00K | Year: 2012

Texas Biochemicals Inc, proposes to develop Polycrystalline Yttrium Aluminum Garnet (YAG) as a cost effective material to replace Sapphires for IR transparent multispectral (1-5 microns) sensor windows. We have recently developed a novel technology to produce mono-dispersed, non-agglomerated and ultra-high purity YAG nano-powders. These powders with grain growth reducing sintering additives were used to produce flat IR transparent nano-grained samples by a novel route. Preliminary results showed high stiffness (~ 330 GPa Young"s modulus), and low optical scatter due to small grain size. In the Phase-I project, we will demonstrate that the material conforms to the requirements of optical transmission, optical scatter, mechanical strength and Young's modulus. A DoD prime contractor's facilities will be used for sample evaluations, with whom we have established an on-going collaboration for the manufacture of ZnS for IR domes and windows applications. Cost estimation and a path forward to manufacture sizes needed by the US Navy will also be addressed in Phase I. On a follow-on Phase II project, we will demonstrate durability, repeatability, and fine tune the fabrication procedures for needed sizes. Collaboration with a DoD prime contractor who is highly interested in this technology will facilitate rapid insertion of the technology for commercialization.


Texas Biochemicals Inc | Entity website

Nanotechnology is becoming the basis of the main technological innovations of the 21st century. Research and development in this field is growing rapidly throughout the world ...


Texas Biochemicals Inc | Entity website

Please contact us below for any specific inquiry. Enter your accurate email id to get a prompt and speedy reply


Texas Biochemicals Inc | Entity website

Ag 99.99%, 80-100 nm, metal basic Al2O3 alpha, 99+%, 80nm Discount! ATO 30nm, 99 ...

Loading Texas Biochemicals Inc collaborators
Loading Texas Biochemicals Inc collaborators