Novel low defect AlN/SiC substrates have very good lattice and thermal
match to GaN-based devices and combine the unique thermal conductivity of
SiC and exceptionally high intrinsic electrical resistivity of AlN.

Material science is concerned with understanding the properties of materials and how to create new ones.

adsorption sputtering

tdii. As consideration, Maxim Group LLC is entitled to receive a
cash fee equal to 5% of the gross proceeds from the offering and a warrant
to purchase 250,000 shares of common stock at an exercise price of $5.

superalloys crystalline

(TDI), a privately held Maryland corporation, today announced the
availability of novel 3-inch in diameter semi insulating substrate
materials for nitride-based semiconductor devices. Other target applications include high power
blue and ultra violet (UV) light emitters, light emitting diodes (LEDs) and
laser diodes (LDs). Principia's analysis
did not investigate these established, commodity markets.
Sealants and coatings are larger volume applications, consuming all
four major types of microspheres.com.

elastomers superconductors

Maxim Group LLC is acting as placement agent for the
transaction. On January 31, 2005 Altair licensed their RenaZorb
drug candidate to a California-based pharmaceutical company for human
therapeutic and diagnostic applications to develop, market and sell the
RenaZorb product line for End Stage Renal Diseases (ESRD). These risks and
uncertainties include, without limitation, the risks that closing will not
occur for one of various reasons, including the failure of Altair or the
investors to satisfy conditions to closing, the failure of the investors to
fund or the issuance of a stop order by a governing regulatory body; that
Altair's numerous development stage products, including its
development-stage Lithium battery electrode materials, will not be
developed to the point of commercialization or that, even if
commercialized, no market will exist for such products or Altair will fail
to effectively market to customers in a market: the risks that Altair will
be unable to enter into license agreements regarding its pigment process
(AHPP), its TiNano Sphere or other developing products, that even if Altair
enters into such license agreements, short term revenues from such
agreements will not be sufficient to fund Altair's operations in the long
run, and that animal testing or future testing of RenaZorb or other
products of the company will not be successful and that development will
need to be terminated.

superconductors matweb

Technologies and Devices International,
Inc. Solid glass was the other major type of
microsphere investigated, and finds use primarily in thermoplastics,
sealants , and EMI shielding for improved heat deflection properties,
reduced shrinkage, and decreased water absorption. Leading producers include 3M, PQ/Potters, Expancel, and
Sovereign.

subroutine superalloys

For more information ,
visit the company's website at PrincipiaConsulting.

cryotechnology abaqus

At a fraction of the price of semi
insulating SiC, this novel product is an excellent, cost-effective
substrate for a variety of nitride semiconductor devices. Forward-looking statements, which are included in accordance
with the "safe harbor" provisions of the Private Securities Litigation
Reform Act of 1995, may involve risks, uncertainties and other factors that
may cause the company's actual results and performance in future periods to
be materially different from any future results or performance suggested by
the forward-looking statements in this release.

ansys thermodynamic

Depending on the application, type of
material, and whether they are solid or hollow, microspheres provide a
variety of functional benefits in these applications, including:

-- Weight reduction

-- Improved strength

-- Buoyancy

-- Thermal and acoustic insulation

-- Electrical conductivity or resistance

-- Dimensional stability

-- Abrasion resistance

Most of the applications analyzed were weight sensitive markets.

subroutine thermotech

Business Editors/Chemicals Writers

EXTON, Pa. EMI shielding and offshore products
are smaller in volume, but are high -value applications because of the
specialty microspheres consumed.

Altair Nanotechnologies , through product innovation, is a leading supplier
of advanced ceramic nanomaterial technology worldwide . The Life Sciences Division is pursuing market applications in
pharmaceuticals, drug delivery, dental materials, cosmetics and other
medical markets.

thermodynamic semiconductors

Microspheres can be either solid or hollow with diameters ranging from
1 to 300 microns. Plastic microspheres were used in eight of the eleven
applications investigated. Other suppliers participating in these applications include
Emerson + Cuming, Asia Pacific Microspheres, Fillite, Siscor, Swarco
Industries, and Engelhard/Prizmalite.
Altair Nanotechnologies, Inc.

Altair scientists apply their nanomaterials science and know how to solve
real world needs.

thermodynamic anisotropy

North American Demand for Microspheres in Specialty Applications Expected to Growth at Over 10% Annually to 2009

----Principia Partners in a
market study it recently completed, estimates that the North American
demand for microsphere fillers will exceeded $300 million in 2000.

Altair Nanotechnologies has developed robust proprietary technology
platforms for manufacturing a variety of crystalline and non-crystalline
nanomaterials of unique structure, performance, quality and cost .

multicomponent texture

The product consists of 10 - 18 micron thick single crystal AlN film
deposited on a conductive silicon carbide (SiC) substrate. In
the world of fillers, microspheres are unique because as engineered
products, they are available in different materials, particle sizes,
strengths, densities, and purities. Rather it
analyzed eleven specialty applications with high-growth, high-value
potential . Plastic
microspheres were second in value, having the highest average price
per pound. For additional
information on Altair and its nano-materials, visit www.

adsorption texture

Paper/paperboard and
wood-plastic-composites are small markets currently, but have
excellent growth potential.

thermosetting semiconductors

About TDI

The company is a privately owned developer and manufacturer of novel
compound semiconductors including GaN, AlN , and AlGaN.
Traditional applications for microspheres include reflective media
for traffic paint , lightweight fillers for automotive and marine
putties, and density modifiers for explosives. For a
prospectus on the study, call either Carl Eckert or Steve Van Kouteren
at 800-378-8330.05 per share, for gross proceeds of
approximately $20,250,000. And on
February 10, 2005 Altair announced it has achieved a breakthrough in
Lithium battery electrode materials that could enable a new generation of
rechargeable batteries to be introduced into the marketplace, as well as
create new markets for rechargeable batteries. In general, Altair is, and expects to be in the
immediate future, dependent upon funds generated from sales of securities,
grants, testing agreements, and licensing agreements to fund its testing,
development and ongoing operations.

conductivity tabulated

Due to
lack of native AlN and GaN substrates , nitride devices are fabricated on
foreign substrates, which are not lattice and thermally matched to the
device structures, limiting their performance, reliability, and causing
device degradation .
Principia Partners' multi-client market study titled Opportunities
for Microspheres in High-Growth Applications 2004 estimates current
and forecast market size for each application, lists current or
potential customers, discusses unmet performance needs, provides
insights on products available and technology developments, and
profiles the leading producers of microspheres. Altair
Nanotechnologies ' unique team of material scientists who, coupled with
collaborative ventures with industry partners and leading academic centers,
has pioneered an impressive array of intellectual property and product
achievements.

thermosetting thermotech

PRESS RELEASE TDI Releases Semi-Insulating Substrates for AlGaN/GaN HEMTs

The GaN -based market is projected
at least $5B for 2007 and more than $7B for 2009. Ceramic microspheres rank second in
volume, primarily because of their large use in coatings.

matweb marketech

TDI is developing
various compound semiconductor materials and devices, primarily for
applications in short wavelength optoelectronics and RF power electronics.
Principia Partners is recognized as a leading consultancy serving
the minerals and reinforcements marketplace. Following closing of the financing, which is
expected to occur today, Altair expects to receive approximately
$19,237,500 after deducting all fees and expenses .

The company is organized into two divisions: Life Sciences and Performance
Materials.

multicomponent alumina

Therefore , it is not surprising that hollow glass microspheres
dominate demand.
There are over ten suppliers of microspheres to these specialty
applications.265
during a four year term, and is subject to one demand registration right
and unlimited incidental registration rights. Such forward-looking statements speak only as of the
date of this release.

elastomers thermodynamic

Thickness of AlN is sufficient to provide reliable insulation and low
current leakage for HEMT devices. Because they are engineered, particle shape is
consistent and size distribution is very tight providing excellent
filler packing and free flowing products.altairnano.

abaqus superalloys

The firm is an
international business consulting firm serving the plastics, building
products, and specialty chemicals industries.

Forward-Looking Statements

This release may contain forward-looking statements as well as historical
information. In addition, other risks are
identified in the company's most recent Annual Report on Form 10-K, as
filed with the SEC. The company expressly disclaims any obligation to
update or revise any forward -looking statements found herein to reflect any
changes in company expectations or results or any change in events.

cryotechnology thermotech

The product is
targeted substrate applications for ultra high power AlGaN/GaN high
electron mobility transistors (HEMTs) and was positively tested at
customers (see for more details www.com) enabling dramatic cost
reduction of final devices.

"Substrate related issues in nitride electronics are well known. Dozens of applications exist for
these products, however in recent years they have experienced
excellent growth as several new high-value, high-growth markets have
emerged .
Overall the eleven markets investigated are expected to grow in
volume at over 10% per year through 2009 and have an average selling
price of over $2 a pound.com

Altairnano, Altair Nanotechnologies , Inc. , Altair Nanomaterials,
TiNano, RenaZorb, NanoCheck, TiNano Spheres and the Altair
Hydrochloride Pigment Process are trademarks or registered trademarks of
Altair Nanotechnologies, Inc.

anisotropy ansys

(NASDAQ: ALTI)
announced today that it has entered into definitive agreements with respect
to the sale of five million shares of its common stock to institutional
investors at a price of $4. The Performance Materials Division is pursuing market
applications in Advanced Materials for paints and coatings; titanium metal
manufacturing, catalysts and water treatment; and alternative energy.

crystalline elastic

Microspheres are spherical additives fabricated from a variety of
raw materials, most commonly engineered glass , plastics, and ceramics. They were consumed in virtually every application,
with sealants, offshore products, coatings, and reinforced thermosets
particularly large consumers.

PRESS RELEASE Altair Nanotechnologies Inc. Announces Shelf Registration Closing

With the completion of
the placement, Altair will have 56,794,724 shares of common stock issued
and outstanding.

elastic elastomers

The group-III nitride
compound semiconductor material family includes gallium nitride (GaN),
aluminum nitride (AlN), and their alloys .

Nitride semiconductors are used for fabrication of a new generation of
electronic devices such as HEMTs for advanced wireless communications, and
novel optoelectronic devices such as blue and UV LEDs and LDs, and UV
photodetectors for applications in cellular phones, giant displays, solid
state lighting and ultra large capacity optical storage systems, and
variety of military applications .

The proceeds will be used for general corporate purposes, including, but
not limited to, working capital, capital expenditures, research and
development activities and the acquisition of other technologies. The
company has a scalable manufacturing capability to meet emerging
nanomaterials demands, with capacity today to produce hundreds of tons of
nanomaterials.

tabulated texture

Proprietary stress-control technology developed at TDI
allows us to put in production these new substrate materials, which will
allow the nitride community to speed up development and commercialization
of advanced nitride semiconductor devices," stated Vladimir Dmitriev,
President and CEO of TDI.

The eleven specialty applications investigated included:

Adhesives

Automotive underbody coatings

Cosmetics

Specialty coatings

EMI shielding

Offshore products

Paper/paperboard

Thermoplastics

Reinforced thermosets

Specialty sealants

Wood-plastic-composites

These eleven markets represent roughly one third of the total
North American demand for microspheres , or $100 million in 2004.

ALTAIR NANOTECHNOLOGIES INC. Many
of the product technology initiatives that the company has been working on
in past years are now coming to the commercialization stage.